Home / 87,918.74-121,328.00-47,632.51

Finding the Fourth Proportional to 87,918.74, 121,328.00 and 47,632.51

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Solution

The fourth proportional to 87,918.74, 121,328.00 and 47,632.51 is: 65,732.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,918.74 : 121,328.00 = 47,632.51 : x
  2. Step 2: Convert to fraction form
    87,918.74/121,328.00 = 47,632.51/x
  3. Step 3: Cross multiply
    87,918.74x = 121,328.00 × 47,632.51
  4. Step 4: Simplify right side
    87,918.74x = 5,779,156,790.20
  5. Step 5: Solve for x
    x = 5,779,156,790.20/87,918.74
  6. Step 6: Final answer
    x = 65,732.93

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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.