Home / 86,925.10-119,959.50-51,118.42

Finding the Fourth Proportional to 86,925.10, 119,959.50 and 51,118.42

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Solution

The fourth proportional to 86,925.10, 119,959.50 and 51,118.42 is: 70,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,925.10 : 119,959.50 = 51,118.42 : x
  2. Step 2: Convert to fraction form
    86,925.10/119,959.50 = 51,118.42/x
  3. Step 3: Cross multiply
    86,925.10x = 119,959.50 × 51,118.42
  4. Step 4: Simplify right side
    86,925.10x = 6,132,140,103.99
  5. Step 5: Solve for x
    x = 6,132,140,103.99/86,925.10
  6. Step 6: Final answer
    x = 70,545.10

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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.