Home / 81,288.76-112,182.84-45,476.63

Finding the Fourth Proportional to 81,288.76, 112,182.84 and 45,476.63

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Solution

The fourth proportional to 81,288.76, 112,182.84 and 45,476.63 is: 62,760.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,288.76 : 112,182.84 = 45,476.63 : x
  2. Step 2: Convert to fraction form
    81,288.76/112,182.84 = 45,476.63/x
  3. Step 3: Cross multiply
    81,288.76x = 112,182.84 × 45,476.63
  4. Step 4: Simplify right side
    81,288.76x = 5,101,697,279.65
  5. Step 5: Solve for x
    x = 5,101,697,279.65/81,288.76
  6. Step 6: Final answer
    x = 62,760.18

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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.