Home / 87,543.74-120,808.76-49,303.14

Finding the Fourth Proportional to 87,543.74, 120,808.76 and 49,303.14

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Solution

The fourth proportional to 87,543.74, 120,808.76 and 49,303.14 is: 68,037.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,543.74 : 120,808.76 = 49,303.14 : x
  2. Step 2: Convert to fraction form
    87,543.74/120,808.76 = 49,303.14/x
  3. Step 3: Cross multiply
    87,543.74x = 120,808.76 × 49,303.14
  4. Step 4: Simplify right side
    87,543.74x = 5,956,251,207.51
  5. Step 5: Solve for x
    x = 5,956,251,207.51/87,543.74
  6. Step 6: Final answer
    x = 68,037.43

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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.