Home / 43,501.20-65,251.80-42,407.70

Finding the Fourth Proportional to 43,501.20, 65,251.80 and 42,407.70

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Solution

The fourth proportional to 43,501.20, 65,251.80 and 42,407.70 is: 63,611.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,501.20 : 65,251.80 = 42,407.70 : x
  2. Step 2: Convert to fraction form
    43,501.20/65,251.80 = 42,407.70/x
  3. Step 3: Cross multiply
    43,501.20x = 65,251.80 × 42,407.70
  4. Step 4: Simplify right side
    43,501.20x = 2,767,178,758.86
  5. Step 5: Solve for x
    x = 2,767,178,758.86/43,501.20
  6. Step 6: Final answer
    x = 63,611.55

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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.