Home / 72,666.30-100,276.20-42,454.38

Finding the Fourth Proportional to 72,666.30, 100,276.20 and 42,454.38

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Solution

The fourth proportional to 72,666.30, 100,276.20 and 42,454.38 is: 58,585.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,666.30 : 100,276.20 = 42,454.38 : x
  2. Step 2: Convert to fraction form
    72,666.30/100,276.20 = 42,454.38/x
  3. Step 3: Cross multiply
    72,666.30x = 100,276.20 × 42,454.38
  4. Step 4: Simplify right side
    72,666.30x = 4,257,163,899.76
  5. Step 5: Solve for x
    x = 4,257,163,899.76/72,666.30
  6. Step 6: Final answer
    x = 58,585.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.