Home / 67,553.04-101,349.08-20,812.80

Finding the Fourth Proportional to 67,553.04, 101,349.08 and 20,812.80

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Solution

The fourth proportional to 67,553.04, 101,349.08 and 20,812.80 is: 31,225.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,553.04 : 101,349.08 = 20,812.80 : x
  2. Step 2: Convert to fraction form
    67,553.04/101,349.08 = 20,812.80/x
  3. Step 3: Cross multiply
    67,553.04x = 101,349.08 × 20,812.80
  4. Step 4: Simplify right side
    67,553.04x = 2,109,358,132.22
  5. Step 5: Solve for x
    x = 2,109,358,132.22/67,553.04
  6. Step 6: Final answer
    x = 31,225.21

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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.