Home / 54,344.78-74,909.12-42,840.93

Finding the Fourth Proportional to 54,344.78, 74,909.12 and 42,840.93

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Solution

The fourth proportional to 54,344.78, 74,909.12 and 42,840.93 is: 59,052.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,344.78 : 74,909.12 = 42,840.93 : x
  2. Step 2: Convert to fraction form
    54,344.78/74,909.12 = 42,840.93/x
  3. Step 3: Cross multiply
    54,344.78x = 74,909.12 × 42,840.93
  4. Step 4: Simplify right side
    54,344.78x = 3,209,176,152.08
  5. Step 5: Solve for x
    x = 3,209,176,152.08/54,344.78
  6. Step 6: Final answer
    x = 59,052.16

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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.