Home / 72,586.20-100,165.86-42,373.20

Finding the Fourth Proportional to 72,586.20, 100,165.86 and 42,373.20

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Solution

The fourth proportional to 72,586.20, 100,165.86 and 42,373.20 is: 58,473.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,586.20 : 100,165.86 = 42,373.20 : x
  2. Step 2: Convert to fraction form
    72,586.20/100,165.86 = 42,373.20/x
  3. Step 3: Cross multiply
    72,586.20x = 100,165.86 × 42,373.20
  4. Step 4: Simplify right side
    72,586.20x = 4,244,348,018.95
  5. Step 5: Solve for x
    x = 4,244,348,018.95/72,586.20
  6. Step 6: Final answer
    x = 58,473.21

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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.