Home / 71,320.67-98,428.07-39,492.53

Finding the Fourth Proportional to 71,320.67, 98,428.07 and 39,492.53

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Solution

The fourth proportional to 71,320.67, 98,428.07 and 39,492.53 is: 54,502.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,320.67 : 98,428.07 = 39,492.53 : x
  2. Step 2: Convert to fraction form
    71,320.67/98,428.07 = 39,492.53/x
  3. Step 3: Cross multiply
    71,320.67x = 98,428.07 × 39,492.53
  4. Step 4: Simplify right side
    71,320.67x = 3,887,173,309.85
  5. Step 5: Solve for x
    x = 3,887,173,309.85/71,320.67
  6. Step 6: Final answer
    x = 54,502.76

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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.