Home / 87,316.08-120,466.20-53,315.52

Finding the Fourth Proportional to 87,316.08, 120,466.20 and 53,315.52

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Solution

The fourth proportional to 87,316.08, 120,466.20 and 53,315.52 is: 73,557.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,316.08 : 120,466.20 = 53,315.52 : x
  2. Step 2: Convert to fraction form
    87,316.08/120,466.20 = 53,315.52/x
  3. Step 3: Cross multiply
    87,316.08x = 120,466.20 × 53,315.52
  4. Step 4: Simplify right side
    87,316.08x = 6,422,718,095.42
  5. Step 5: Solve for x
    x = 6,422,718,095.42/87,316.08
  6. Step 6: Final answer
    x = 73,557.11

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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.