Home / 90,145.62-124,287.94-57,823.29

Finding the Fourth Proportional to 90,145.62, 124,287.94 and 57,823.29

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Solution

The fourth proportional to 90,145.62, 124,287.94 and 57,823.29 is: 79,723.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,145.62 : 124,287.94 = 57,823.29 : x
  2. Step 2: Convert to fraction form
    90,145.62/124,287.94 = 57,823.29/x
  3. Step 3: Cross multiply
    90,145.62x = 124,287.94 × 57,823.29
  4. Step 4: Simplify right side
    90,145.62x = 7,186,737,598.12
  5. Step 5: Solve for x
    x = 7,186,737,598.12/90,145.62
  6. Step 6: Final answer
    x = 79,723.65

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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.