Home / 72,325.12-99,810.75-40,493.83

Finding the Fourth Proportional to 72,325.12, 99,810.75 and 40,493.83

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Solution

The fourth proportional to 72,325.12, 99,810.75 and 40,493.83 is: 55,882.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,325.12 : 99,810.75 = 40,493.83 : x
  2. Step 2: Convert to fraction form
    72,325.12/99,810.75 = 40,493.83/x
  3. Step 3: Cross multiply
    72,325.12x = 99,810.75 × 40,493.83
  4. Step 4: Simplify right side
    72,325.12x = 4,041,719,542.67
  5. Step 5: Solve for x
    x = 4,041,719,542.67/72,325.12
  6. Step 6: Final answer
    x = 55,882.65

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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.