Home / 56,374.08-77,793.20-30,879.12

Finding the Fourth Proportional to 56,374.08, 77,793.20 and 30,879.12

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Solution

The fourth proportional to 56,374.08, 77,793.20 and 30,879.12 is: 42,611.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,374.08 : 77,793.20 = 30,879.12 : x
  2. Step 2: Convert to fraction form
    56,374.08/77,793.20 = 30,879.12/x
  3. Step 3: Cross multiply
    56,374.08x = 77,793.20 × 30,879.12
  4. Step 4: Simplify right side
    56,374.08x = 2,402,185,557.98
  5. Step 5: Solve for x
    x = 2,402,185,557.98/56,374.08
  6. Step 6: Final answer
    x = 42,611.53

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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.