Home / 56,145.15-84,265.11-28,056.78

Finding the Fourth Proportional to 56,145.15, 84,265.11 and 28,056.78

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Solution

The fourth proportional to 56,145.15, 84,265.11 and 28,056.78 is: 42,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,145.15 : 84,265.11 = 28,056.78 : x
  2. Step 2: Convert to fraction form
    56,145.15/84,265.11 = 28,056.78/x
  3. Step 3: Cross multiply
    56,145.15x = 84,265.11 × 28,056.78
  4. Step 4: Simplify right side
    56,145.15x = 2,364,207,652.95
  5. Step 5: Solve for x
    x = 2,364,207,652.95/56,145.15
  6. Step 6: Final answer
    x = 42,108.85

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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.