Home / 78,323.15-108,142.11-48,148.92

Finding the Fourth Proportional to 78,323.15, 108,142.11 and 48,148.92

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Solution

The fourth proportional to 78,323.15, 108,142.11 and 48,148.92 is: 66,480.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,323.15 : 108,142.11 = 48,148.92 : x
  2. Step 2: Convert to fraction form
    78,323.15/108,142.11 = 48,148.92/x
  3. Step 3: Cross multiply
    78,323.15x = 108,142.11 × 48,148.92
  4. Step 4: Simplify right side
    78,323.15x = 5,206,925,803.02
  5. Step 5: Solve for x
    x = 5,206,925,803.02/78,323.15
  6. Step 6: Final answer
    x = 66,480.03

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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.