Home / 71,430.31-98,553.88-56,275.93

Finding the Fourth Proportional to 71,430.31, 98,553.88 and 56,275.93

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Solution

The fourth proportional to 71,430.31, 98,553.88 and 56,275.93 is: 77,645.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,430.31 : 98,553.88 = 56,275.93 : x
  2. Step 2: Convert to fraction form
    71,430.31/98,553.88 = 56,275.93/x
  3. Step 3: Cross multiply
    71,430.31x = 98,553.88 × 56,275.93
  4. Step 4: Simplify right side
    71,430.31x = 5,546,211,252.11
  5. Step 5: Solve for x
    x = 5,546,211,252.11/71,430.31
  6. Step 6: Final answer
    x = 77,645.07

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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.