Home / 77,199.72-106,561.90-45,378.06

Finding the Fourth Proportional to 77,199.72, 106,561.90 and 45,378.06

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Solution

The fourth proportional to 77,199.72, 106,561.90 and 45,378.06 is: 62,637.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,199.72 : 106,561.90 = 45,378.06 : x
  2. Step 2: Convert to fraction form
    77,199.72/106,561.90 = 45,378.06/x
  3. Step 3: Cross multiply
    77,199.72x = 106,561.90 × 45,378.06
  4. Step 4: Simplify right side
    77,199.72x = 4,835,572,291.91
  5. Step 5: Solve for x
    x = 4,835,572,291.91/77,199.72
  6. Step 6: Final answer
    x = 62,637.17

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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.