Home / 81,084.40-111,895.44-45,275.04

Finding the Fourth Proportional to 81,084.40, 111,895.44 and 45,275.04

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Solution

The fourth proportional to 81,084.40, 111,895.44 and 45,275.04 is: 62,478.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,084.40 : 111,895.44 = 45,275.04 : x
  2. Step 2: Convert to fraction form
    81,084.40/111,895.44 = 45,275.04/x
  3. Step 3: Cross multiply
    81,084.40x = 111,895.44 × 45,275.04
  4. Step 4: Simplify right side
    81,084.40x = 5,066,070,521.82
  5. Step 5: Solve for x
    x = 5,066,070,521.82/81,084.40
  6. Step 6: Final answer
    x = 62,478.98

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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.