Home / 80,656.95-111,276.85-48,814.23

Finding the Fourth Proportional to 80,656.95, 111,276.85 and 48,814.23

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Solution

The fourth proportional to 80,656.95, 111,276.85 and 48,814.23 is: 67,345.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,656.95 : 111,276.85 = 48,814.23 : x
  2. Step 2: Convert to fraction form
    80,656.95/111,276.85 = 48,814.23/x
  3. Step 3: Cross multiply
    80,656.95x = 111,276.85 × 48,814.23
  4. Step 4: Simplify right side
    80,656.95x = 5,431,893,749.58
  5. Step 5: Solve for x
    x = 5,431,893,749.58/80,656.95
  6. Step 6: Final answer
    x = 67,345.64

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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.