Home / 90,102.96-124,359.12-54,298.08

Finding the Fourth Proportional to 90,102.96, 124,359.12 and 54,298.08

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Solution

The fourth proportional to 90,102.96, 124,359.12 and 54,298.08 is: 74,941.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,102.96 : 124,359.12 = 54,298.08 : x
  2. Step 2: Convert to fraction form
    90,102.96/124,359.12 = 54,298.08/x
  3. Step 3: Cross multiply
    90,102.96x = 124,359.12 × 54,298.08
  4. Step 4: Simplify right side
    90,102.96x = 6,752,461,446.49
  5. Step 5: Solve for x
    x = 6,752,461,446.49/90,102.96
  6. Step 6: Final answer
    x = 74,941.62

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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.