Home / 67,766.32-101,652.36-21,018.16

Finding the Fourth Proportional to 67,766.32, 101,652.36 and 21,018.16

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Solution

The fourth proportional to 67,766.32, 101,652.36 and 21,018.16 is: 31,528.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,766.32 : 101,652.36 = 21,018.16 : x
  2. Step 2: Convert to fraction form
    67,766.32/101,652.36 = 21,018.16/x
  3. Step 3: Cross multiply
    67,766.32x = 101,652.36 × 21,018.16
  4. Step 4: Simplify right side
    67,766.32x = 2,136,545,566.86
  5. Step 5: Solve for x
    x = 2,136,545,566.86/67,766.32
  6. Step 6: Final answer
    x = 31,528.13

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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.