Home / 86,275.67-129,444.64-30,124.05

Finding the Fourth Proportional to 86,275.67, 129,444.64 and 30,124.05

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Solution

The fourth proportional to 86,275.67, 129,444.64 and 30,124.05 is: 45,196.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,275.67 : 129,444.64 = 30,124.05 : x
  2. Step 2: Convert to fraction form
    86,275.67/129,444.64 = 30,124.05/x
  3. Step 3: Cross multiply
    86,275.67x = 129,444.64 × 30,124.05
  4. Step 4: Simplify right side
    86,275.67x = 3,899,396,246.86
  5. Step 5: Solve for x
    x = 3,899,396,246.86/86,275.67
  6. Step 6: Final answer
    x = 45,196.94

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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.