Home / 75,238.40-112,987.20-40,246.40

Finding the Fourth Proportional to 75,238.40, 112,987.20 and 40,246.40

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Solution

The fourth proportional to 75,238.40, 112,987.20 and 40,246.40 is: 60,438.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,238.40 : 112,987.20 = 40,246.40 : x
  2. Step 2: Convert to fraction form
    75,238.40/112,987.20 = 40,246.40/x
  3. Step 3: Cross multiply
    75,238.40x = 112,987.20 × 40,246.40
  4. Step 4: Simplify right side
    75,238.40x = 4,547,328,046.08
  5. Step 5: Solve for x
    x = 4,547,328,046.08/75,238.40
  6. Step 6: Final answer
    x = 60,438.93

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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.