Home / 56,689.20-78,239.52-32,816.88

Finding the Fourth Proportional to 56,689.20, 78,239.52 and 32,816.88

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Solution

The fourth proportional to 56,689.20, 78,239.52 and 32,816.88 is: 45,292.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,689.20 : 78,239.52 = 32,816.88 : x
  2. Step 2: Convert to fraction form
    56,689.20/78,239.52 = 32,816.88/x
  3. Step 3: Cross multiply
    56,689.20x = 78,239.52 × 32,816.88
  4. Step 4: Simplify right side
    56,689.20x = 2,567,576,939.10
  5. Step 5: Solve for x
    x = 2,567,576,939.10/56,689.20
  6. Step 6: Final answer
    x = 45,292.17

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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.