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Finding the Fourth Proportional to 67,358.40, 101,037.60 and 56,990.40

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Solution

The fourth proportional to 67,358.40, 101,037.60 and 56,990.40 is: 85,485.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,358.40 : 101,037.60 = 56,990.40 : x
  2. Step 2: Convert to fraction form
    67,358.40/101,037.60 = 56,990.40/x
  3. Step 3: Cross multiply
    67,358.40x = 101,037.60 × 56,990.40
  4. Step 4: Simplify right side
    67,358.40x = 5,758,173,239.04
  5. Step 5: Solve for x
    x = 5,758,173,239.04/67,358.40
  6. Step 6: Final answer
    x = 85,485.60

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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.