Home / 78,442.08-108,209.52-48,582.24

Finding the Fourth Proportional to 78,442.08, 108,209.52 and 48,582.24

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Solution

The fourth proportional to 78,442.08, 108,209.52 and 48,582.24 is: 67,018.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,442.08 : 108,209.52 = 48,582.24 : x
  2. Step 2: Convert to fraction form
    78,442.08/108,209.52 = 48,582.24/x
  3. Step 3: Cross multiply
    78,442.08x = 108,209.52 × 48,582.24
  4. Step 4: Simplify right side
    78,442.08x = 5,257,060,870.92
  5. Step 5: Solve for x
    x = 5,257,060,870.92/78,442.08
  6. Step 6: Final answer
    x = 67,018.38

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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.