Home / 56,520.18-77,998.65-31,029.08

Finding the Fourth Proportional to 56,520.18, 77,998.65 and 31,029.08

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Solution

The fourth proportional to 56,520.18, 77,998.65 and 31,029.08 is: 42,820.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,520.18 : 77,998.65 = 31,029.08 : x
  2. Step 2: Convert to fraction form
    56,520.18/77,998.65 = 31,029.08/x
  3. Step 3: Cross multiply
    56,520.18x = 77,998.65 × 31,029.08
  4. Step 4: Simplify right side
    56,520.18x = 2,420,225,960.75
  5. Step 5: Solve for x
    x = 2,420,225,960.75/56,520.18
  6. Step 6: Final answer
    x = 42,820.56

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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.