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Finding the Fourth Proportional to 67,445.80, 101,168.70 and 54,323.80

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Solution

The fourth proportional to 67,445.80, 101,168.70 and 54,323.80 is: 81,485.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,445.80 : 101,168.70 = 54,323.80 : x
  2. Step 2: Convert to fraction form
    67,445.80/101,168.70 = 54,323.80/x
  3. Step 3: Cross multiply
    67,445.80x = 101,168.70 × 54,323.80
  4. Step 4: Simplify right side
    67,445.80x = 5,495,868,225.06
  5. Step 5: Solve for x
    x = 5,495,868,225.06/67,445.80
  6. Step 6: Final answer
    x = 81,485.70

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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.