Home / 74,164.79-102,319.17-54,830.13

Finding the Fourth Proportional to 74,164.79, 102,319.17 and 54,830.13

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Solution

The fourth proportional to 74,164.79, 102,319.17 and 54,830.13 is: 75,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,164.79 : 102,319.17 = 54,830.13 : x
  2. Step 2: Convert to fraction form
    74,164.79/102,319.17 = 54,830.13/x
  3. Step 3: Cross multiply
    74,164.79x = 102,319.17 × 54,830.13
  4. Step 4: Simplify right side
    74,164.79x = 5,610,173,392.59
  5. Step 5: Solve for x
    x = 5,610,173,392.59/74,164.79
  6. Step 6: Final answer
    x = 75,644.70

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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.