Home / 90,396.24-124,690.53-58,172.91

Finding the Fourth Proportional to 90,396.24, 124,690.53 and 58,172.91

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Solution

The fourth proportional to 90,396.24, 124,690.53 and 58,172.91 is: 80,242.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,396.24 : 124,690.53 = 58,172.91 : x
  2. Step 2: Convert to fraction form
    90,396.24/124,690.53 = 58,172.91/x
  3. Step 3: Cross multiply
    90,396.24x = 124,690.53 × 58,172.91
  4. Step 4: Simplify right side
    90,396.24x = 7,253,610,979.54
  5. Step 5: Solve for x
    x = 7,253,610,979.54/90,396.24
  6. Step 6: Final answer
    x = 80,242.40

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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.