Home / 47,311.68-70,887.20-28,552.31

Finding the Fourth Proportional to 47,311.68, 70,887.20 and 28,552.31

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Solution

The fourth proportional to 47,311.68, 70,887.20 and 28,552.31 is: 42,779.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,311.68 : 70,887.20 = 28,552.31 : x
  2. Step 2: Convert to fraction form
    47,311.68/70,887.20 = 28,552.31/x
  3. Step 3: Cross multiply
    47,311.68x = 70,887.20 × 28,552.31
  4. Step 4: Simplify right side
    47,311.68x = 2,023,992,812.23
  5. Step 5: Solve for x
    x = 2,023,992,812.23/47,311.68
  6. Step 6: Final answer
    x = 42,779.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.