Home / 56,913.88-85,387.02-19,478.92

Finding the Fourth Proportional to 56,913.88, 85,387.02 and 19,478.92

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Solution

The fourth proportional to 56,913.88, 85,387.02 and 19,478.92 is: 29,223.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,913.88 : 85,387.02 = 19,478.92 : x
  2. Step 2: Convert to fraction form
    56,913.88/85,387.02 = 19,478.92/x
  3. Step 3: Cross multiply
    56,913.88x = 85,387.02 × 19,478.92
  4. Step 4: Simplify right side
    56,913.88x = 1,663,246,931.62
  5. Step 5: Solve for x
    x = 1,663,246,931.62/56,913.88
  6. Step 6: Final answer
    x = 29,223.92

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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.