Home / 87,075,726.72-120,161,489.63-47,913,839.43

Finding the Fourth Proportional to 87,075,726.72, 120,161,489.63 and 47,913,839.43

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Solution

The fourth proportional to 87,075,726.72, 120,161,489.63 and 47,913,839.43 is: 66,119,440.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,075,726.72 : 120,161,489.63 = 47,913,839.43 : x
  2. Step 2: Convert to fraction form
    87,075,726.72/120,161,489.63 = 47,913,839.43/x
  3. Step 3: Cross multiply
    87,075,726.72x = 120,161,489.63 × 47,913,839.43
  4. Step 4: Simplify right side
    87,075,726.72x = 5,757,398,319,561,861
  5. Step 5: Solve for x
    x = 5,757,398,319,561,861/87,075,726.72
  6. Step 6: Final answer
    x = 66,119,440.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.