Home / 56,178.96-77,520.36-31,026.96

Finding the Fourth Proportional to 56,178.96, 77,520.36 and 31,026.96

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Solution

The fourth proportional to 56,178.96, 77,520.36 and 31,026.96 is: 42,813.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,178.96 : 77,520.36 = 31,026.96 : x
  2. Step 2: Convert to fraction form
    56,178.96/77,520.36 = 31,026.96/x
  3. Step 3: Cross multiply
    56,178.96x = 77,520.36 × 31,026.96
  4. Step 4: Simplify right side
    56,178.96x = 2,405,221,108.91
  5. Step 5: Solve for x
    x = 2,405,221,108.91/56,178.96
  6. Step 6: Final answer
    x = 42,813.56

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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.