Home / 72,165.24-99,586.32-40,337.10

Finding the Fourth Proportional to 72,165.24, 99,586.32 and 40,337.10

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Solution

The fourth proportional to 72,165.24, 99,586.32 and 40,337.10 is: 55,664.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,165.24 : 99,586.32 = 40,337.10 : x
  2. Step 2: Convert to fraction form
    72,165.24/99,586.32 = 40,337.10/x
  3. Step 3: Cross multiply
    72,165.24x = 99,586.32 × 40,337.10
  4. Step 4: Simplify right side
    72,165.24x = 4,017,023,348.47
  5. Step 5: Solve for x
    x = 4,017,023,348.47/72,165.24
  6. Step 6: Final answer
    x = 55,664.24

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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.