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Finding the Fourth Proportional to 60,279.13, 90,474.72 and 30,719.17

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Solution

The fourth proportional to 60,279.13, 90,474.72 and 30,719.17 is: 46,107.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,279.13 : 90,474.72 = 30,719.17 : x
  2. Step 2: Convert to fraction form
    60,279.13/90,474.72 = 30,719.17/x
  3. Step 3: Cross multiply
    60,279.13x = 90,474.72 × 30,719.17
  4. Step 4: Simplify right side
    60,279.13x = 2,779,308,304.38
  5. Step 5: Solve for x
    x = 2,779,308,304.38/60,279.13
  6. Step 6: Final answer
    x = 46,107.31

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1.5x scale

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.