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Finding the Fourth Proportional to 45,292, 62,503.92 and 25,420

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Solution

The fourth proportional to 45,292, 62,503.92 and 25,420 is: 35,080.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,292 : 62,503.92 = 25,420 : x
  2. Step 2: Convert to fraction form
    45,292/62,503.92 = 25,420/x
  3. Step 3: Cross multiply
    45,292x = 62,503.92 × 25,420
  4. Step 4: Simplify right side
    45,292x = 1,588,849,646.40
  5. Step 5: Solve for x
    x = 1,588,849,646.40/45,292
  6. Step 6: Final answer
    x = 35,080.14

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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.