Home / 80,842.38-111,547.68-45,031.50

Finding the Fourth Proportional to 80,842.38, 111,547.68 and 45,031.50

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Solution

The fourth proportional to 80,842.38, 111,547.68 and 45,031.50 is: 62,135.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,842.38 : 111,547.68 = 45,031.50 : x
  2. Step 2: Convert to fraction form
    80,842.38/111,547.68 = 45,031.50/x
  3. Step 3: Cross multiply
    80,842.38x = 111,547.68 × 45,031.50
  4. Step 4: Simplify right side
    80,842.38x = 5,023,159,351.92
  5. Step 5: Solve for x
    x = 5,023,159,351.92/80,842.38
  6. Step 6: Final answer
    x = 62,135.22

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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.