Home / 90,465.13-124,825.74-54,631.15

Finding the Fourth Proportional to 90,465.13, 124,825.74 and 54,631.15

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Solution

The fourth proportional to 90,465.13, 124,825.74 and 54,631.15 is: 75,381.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,465.13 : 124,825.74 = 54,631.15 : x
  2. Step 2: Convert to fraction form
    90,465.13/124,825.74 = 54,631.15/x
  3. Step 3: Cross multiply
    90,465.13x = 124,825.74 × 54,631.15
  4. Step 4: Simplify right side
    90,465.13x = 6,819,373,725.80
  5. Step 5: Solve for x
    x = 6,819,373,725.80/90,465.13
  6. Step 6: Final answer
    x = 75,381.24

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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.