Home / 53,042.32-79,507.68-40,535.20

Finding the Fourth Proportional to 53,042.32, 79,507.68 and 40,535.20

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Solution

The fourth proportional to 53,042.32, 79,507.68 and 40,535.20 is: 60,760.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,042.32 : 79,507.68 = 40,535.20 : x
  2. Step 2: Convert to fraction form
    53,042.32/79,507.68 = 40,535.20/x
  3. Step 3: Cross multiply
    53,042.32x = 79,507.68 × 40,535.20
  4. Step 4: Simplify right side
    53,042.32x = 3,222,859,710.34
  5. Step 5: Solve for x
    x = 3,222,859,710.34/53,042.32
  6. Step 6: Final answer
    x = 60,760.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.