Home / 261,059.20-391,603.68-74,056

Finding the Fourth Proportional to 261,059.20, 391,603.68 and 74,056

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Solution

The fourth proportional to 261,059.20, 391,603.68 and 74,056 is: 111,088.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,059.20 : 391,603.68 = 74,056 : x
  2. Step 2: Convert to fraction form
    261,059.20/391,603.68 = 74,056/x
  3. Step 3: Cross multiply
    261,059.20x = 391,603.68 × 74,056
  4. Step 4: Simplify right side
    261,059.20x = 29,000,602,126.08
  5. Step 5: Solve for x
    x = 29,000,602,126.08/261,059.20
  6. Step 6: Final answer
    x = 111,088.22

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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.