Home / 71,717.44-107,428.20-42,045.16

Finding the Fourth Proportional to 71,717.44, 107,428.20 and 42,045.16

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Solution

The fourth proportional to 71,717.44, 107,428.20 and 42,045.16 is: 62,981.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,717.44 : 107,428.20 = 42,045.16 : x
  2. Step 2: Convert to fraction form
    71,717.44/107,428.20 = 42,045.16/x
  3. Step 3: Cross multiply
    71,717.44x = 107,428.20 × 42,045.16
  4. Step 4: Simplify right side
    71,717.44x = 4,516,835,857.51
  5. Step 5: Solve for x
    x = 4,516,835,857.51/71,717.44
  6. Step 6: Final answer
    x = 62,981.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.