Home / 78,659.27-108,550.08-42,848.94

Finding the Fourth Proportional to 78,659.27, 108,550.08 and 42,848.94

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Solution

The fourth proportional to 78,659.27, 108,550.08 and 42,848.94 is: 59,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,659.27 : 108,550.08 = 42,848.94 : x
  2. Step 2: Convert to fraction form
    78,659.27/108,550.08 = 42,848.94/x
  3. Step 3: Cross multiply
    78,659.27x = 108,550.08 × 42,848.94
  4. Step 4: Simplify right side
    78,659.27x = 4,651,255,864.92
  5. Step 5: Solve for x
    x = 4,651,255,864.92/78,659.27
  6. Step 6: Final answer
    x = 59,131.70

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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.