Home / 65,460.10-90,346.70-38,601

Finding the Fourth Proportional to 65,460.10, 90,346.70 and 38,601

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Solution

The fourth proportional to 65,460.10, 90,346.70 and 38,601 is: 53,276.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,460.10 : 90,346.70 = 38,601 : x
  2. Step 2: Convert to fraction form
    65,460.10/90,346.70 = 38,601/x
  3. Step 3: Cross multiply
    65,460.10x = 90,346.70 × 38,601
  4. Step 4: Simplify right side
    65,460.10x = 3,487,472,966.70
  5. Step 5: Solve for x
    x = 3,487,472,966.70/65,460.10
  6. Step 6: Final answer
    x = 53,276.32

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1.5x scale

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.