Home / 75,372.68-104,025.12-45,159.20

Finding the Fourth Proportional to 75,372.68, 104,025.12 and 45,159.20

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Solution

The fourth proportional to 75,372.68, 104,025.12 and 45,159.20 is: 62,326.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,372.68 : 104,025.12 = 45,159.20 : x
  2. Step 2: Convert to fraction form
    75,372.68/104,025.12 = 45,159.20/x
  3. Step 3: Cross multiply
    75,372.68x = 104,025.12 × 45,159.20
  4. Step 4: Simplify right side
    75,372.68x = 4,697,691,199.10
  5. Step 5: Solve for x
    x = 4,697,691,199.10/75,372.68
  6. Step 6: Final answer
    x = 62,326.18

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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.