Home / 81,441.64-112,386.45-47,452.02

Finding the Fourth Proportional to 81,441.64, 112,386.45 and 47,452.02

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Solution

The fourth proportional to 81,441.64, 112,386.45 and 47,452.02 is: 65,482.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,441.64 : 112,386.45 = 47,452.02 : x
  2. Step 2: Convert to fraction form
    81,441.64/112,386.45 = 47,452.02/x
  3. Step 3: Cross multiply
    81,441.64x = 112,386.45 × 47,452.02
  4. Step 4: Simplify right side
    81,441.64x = 5,332,964,073.13
  5. Step 5: Solve for x
    x = 5,332,964,073.13/81,441.64
  6. Step 6: Final answer
    x = 65,482.03

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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.