Home / 40,439.20-60,658.80-26,442.40

Finding the Fourth Proportional to 40,439.20, 60,658.80 and 26,442.40

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Solution

The fourth proportional to 40,439.20, 60,658.80 and 26,442.40 is: 39,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,439.20 : 60,658.80 = 26,442.40 : x
  2. Step 2: Convert to fraction form
    40,439.20/60,658.80 = 26,442.40/x
  3. Step 3: Cross multiply
    40,439.20x = 60,658.80 × 26,442.40
  4. Step 4: Simplify right side
    40,439.20x = 1,603,964,253.12
  5. Step 5: Solve for x
    x = 1,603,964,253.12/40,439.20
  6. Step 6: Final answer
    x = 39,663.60

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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.