Home / 87,817.95-131,726.39-28,653.66

Finding the Fourth Proportional to 87,817.95, 131,726.39 and 28,653.66

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Solution

The fourth proportional to 87,817.95, 131,726.39 and 28,653.66 is: 42,980.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,817.95 : 131,726.39 = 28,653.66 : x
  2. Step 2: Convert to fraction form
    87,817.95/131,726.39 = 28,653.66/x
  3. Step 3: Cross multiply
    87,817.95x = 131,726.39 × 28,653.66
  4. Step 4: Simplify right side
    87,817.95x = 3,774,443,048.82
  5. Step 5: Solve for x
    x = 3,774,443,048.82/87,817.95
  6. Step 6: Final answer
    x = 42,980.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.