Home / 63,669.20-87,631.56-45,736.40

Finding the Fourth Proportional to 63,669.20, 87,631.56 and 45,736.40

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Solution

The fourth proportional to 63,669.20, 87,631.56 and 45,736.40 is: 62,949.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,669.20 : 87,631.56 = 45,736.40 : x
  2. Step 2: Convert to fraction form
    63,669.20/87,631.56 = 45,736.40/x
  3. Step 3: Cross multiply
    63,669.20x = 87,631.56 × 45,736.40
  4. Step 4: Simplify right side
    63,669.20x = 4,007,952,080.78
  5. Step 5: Solve for x
    x = 4,007,952,080.78/63,669.20
  6. Step 6: Final answer
    x = 62,949.62

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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.