Home / 55,730.88-76,848.96-42,149.76

Finding the Fourth Proportional to 55,730.88, 76,848.96 and 42,149.76

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Solution

The fourth proportional to 55,730.88, 76,848.96 and 42,149.76 is: 58,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,730.88 : 76,848.96 = 42,149.76 : x
  2. Step 2: Convert to fraction form
    55,730.88/76,848.96 = 42,149.76/x
  3. Step 3: Cross multiply
    55,730.88x = 76,848.96 × 42,149.76
  4. Step 4: Simplify right side
    55,730.88x = 3,239,165,220.25
  5. Step 5: Solve for x
    x = 3,239,165,220.25/55,730.88
  6. Step 6: Final answer
    x = 58,121.55

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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.