Home / 42,117.45-58,131.86-27,779.85

Finding the Fourth Proportional to 42,117.45, 58,131.86 and 27,779.85

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Solution

The fourth proportional to 42,117.45, 58,131.86 and 27,779.85 is: 38,342.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,117.45 : 58,131.86 = 27,779.85 : x
  2. Step 2: Convert to fraction form
    42,117.45/58,131.86 = 27,779.85/x
  3. Step 3: Cross multiply
    42,117.45x = 58,131.86 × 27,779.85
  4. Step 4: Simplify right side
    42,117.45x = 1,614,894,212.12
  5. Step 5: Solve for x
    x = 1,614,894,212.12/42,117.45
  6. Step 6: Final answer
    x = 38,342.64

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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.