Home / 257,592.45-386,423.85-89,067.53

Finding the Fourth Proportional to 257,592.45, 386,423.85 and 89,067.53

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Solution

The fourth proportional to 257,592.45, 386,423.85 and 89,067.53 is: 133,613.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,592.45 : 386,423.85 = 89,067.53 : x
  2. Step 2: Convert to fraction form
    257,592.45/386,423.85 = 89,067.53/x
  3. Step 3: Cross multiply
    257,592.45x = 386,423.85 × 89,067.53
  4. Step 4: Simplify right side
    257,592.45x = 34,417,817,852.59
  5. Step 5: Solve for x
    x = 34,417,817,852.59/257,592.45
  6. Step 6: Final answer
    x = 133,613.46

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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.