Home / 70,565.28-97,374-38,734.08

Finding the Fourth Proportional to 70,565.28, 97,374 and 38,734.08

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Solution

The fourth proportional to 70,565.28, 97,374 and 38,734.08 is: 53,449.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,565.28 : 97,374 = 38,734.08 : x
  2. Step 2: Convert to fraction form
    70,565.28/97,374 = 38,734.08/x
  3. Step 3: Cross multiply
    70,565.28x = 97,374 × 38,734.08
  4. Step 4: Simplify right side
    70,565.28x = 3,771,692,305.92
  5. Step 5: Solve for x
    x = 3,771,692,305.92/70,565.28
  6. Step 6: Final answer
    x = 53,449.69

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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.