Home / 67,439.64-93,079.26-38,776.08

Finding the Fourth Proportional to 67,439.64, 93,079.26 and 38,776.08

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Solution

The fourth proportional to 67,439.64, 93,079.26 and 38,776.08 is: 53,518.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,439.64 : 93,079.26 = 38,776.08 : x
  2. Step 2: Convert to fraction form
    67,439.64/93,079.26 = 38,776.08/x
  3. Step 3: Cross multiply
    67,439.64x = 93,079.26 × 38,776.08
  4. Step 4: Simplify right side
    67,439.64x = 3,609,248,832.10
  5. Step 5: Solve for x
    x = 3,609,248,832.10/67,439.64
  6. Step 6: Final answer
    x = 53,518.21

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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.