Home / 64,658.18-96,987.28-20,288.48

Finding the Fourth Proportional to 64,658.18, 96,987.28 and 20,288.48

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Solution

The fourth proportional to 64,658.18, 96,987.28 and 20,288.48 is: 30,432.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,658.18 : 96,987.28 = 20,288.48 : x
  2. Step 2: Convert to fraction form
    64,658.18/96,987.28 = 20,288.48/x
  3. Step 3: Cross multiply
    64,658.18x = 96,987.28 × 20,288.48
  4. Step 4: Simplify right side
    64,658.18x = 1,967,724,490.53
  5. Step 5: Solve for x
    x = 1,967,724,490.53/64,658.18
  6. Step 6: Final answer
    x = 30,432.72

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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.