Home / 76,088.20-113,582.45-66,757

Finding the Fourth Proportional to 76,088.20, 113,582.45 and 66,757

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Solution

The fourth proportional to 76,088.20, 113,582.45 and 66,757 is: 99,653.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,088.20 : 113,582.45 = 66,757 : x
  2. Step 2: Convert to fraction form
    76,088.20/113,582.45 = 66,757/x
  3. Step 3: Cross multiply
    76,088.20x = 113,582.45 × 66,757
  4. Step 4: Simplify right side
    76,088.20x = 7,582,423,614.65
  5. Step 5: Solve for x
    x = 7,582,423,614.65/76,088.20
  6. Step 6: Final answer
    x = 99,653.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.