Home / 86,869.60-130,278.40-45,293.92

Finding the Fourth Proportional to 86,869.60, 130,278.40 and 45,293.92

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Solution

The fourth proportional to 86,869.60, 130,278.40 and 45,293.92 is: 67,927.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,869.60 : 130,278.40 = 45,293.92 : x
  2. Step 2: Convert to fraction form
    86,869.60/130,278.40 = 45,293.92/x
  3. Step 3: Cross multiply
    86,869.60x = 130,278.40 × 45,293.92
  4. Step 4: Simplify right side
    86,869.60x = 5,900,819,427.33
  5. Step 5: Solve for x
    x = 5,900,819,427.33/86,869.60
  6. Step 6: Final answer
    x = 67,927.32

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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.