Home / 55,359.20-83,038.80-51,641.30

Finding the Fourth Proportional to 55,359.20, 83,038.80 and 51,641.30

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Solution

The fourth proportional to 55,359.20, 83,038.80 and 51,641.30 is: 77,461.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,359.20 : 83,038.80 = 51,641.30 : x
  2. Step 2: Convert to fraction form
    55,359.20/83,038.80 = 51,641.30/x
  3. Step 3: Cross multiply
    55,359.20x = 83,038.80 × 51,641.30
  4. Step 4: Simplify right side
    55,359.20x = 4,288,231,582.44
  5. Step 5: Solve for x
    x = 4,288,231,582.44/55,359.20
  6. Step 6: Final answer
    x = 77,461.95

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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.