Home / 76,170.13-105,113.48-42,177.89

Finding the Fourth Proportional to 76,170.13, 105,113.48 and 42,177.89

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Solution

The fourth proportional to 76,170.13, 105,113.48 and 42,177.89 is: 58,204.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,170.13 : 105,113.48 = 42,177.89 : x
  2. Step 2: Convert to fraction form
    76,170.13/105,113.48 = 42,177.89/x
  3. Step 3: Cross multiply
    76,170.13x = 105,113.48 × 42,177.89
  4. Step 4: Simplify right side
    76,170.13x = 4,433,464,796.96
  5. Step 5: Solve for x
    x = 4,433,464,796.96/76,170.13
  6. Step 6: Final answer
    x = 58,204.77

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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.