Home / 75,724.78-113,587.18-25,779.18

Finding the Fourth Proportional to 75,724.78, 113,587.18 and 25,779.18

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Solution

The fourth proportional to 75,724.78, 113,587.18 and 25,779.18 is: 38,668.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,724.78 : 113,587.18 = 25,779.18 : x
  2. Step 2: Convert to fraction form
    75,724.78/113,587.18 = 25,779.18/x
  3. Step 3: Cross multiply
    75,724.78x = 113,587.18 × 25,779.18
  4. Step 4: Simplify right side
    75,724.78x = 2,928,184,358.91
  5. Step 5: Solve for x
    x = 2,928,184,358.91/75,724.78
  6. Step 6: Final answer
    x = 38,668.77

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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.