Home / 86,769.40-130,154.10-49,444.60

Finding the Fourth Proportional to 86,769.40, 130,154.10 and 49,444.60

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Solution

The fourth proportional to 86,769.40, 130,154.10 and 49,444.60 is: 74,166.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,769.40 : 130,154.10 = 49,444.60 : x
  2. Step 2: Convert to fraction form
    86,769.40/130,154.10 = 49,444.60/x
  3. Step 3: Cross multiply
    86,769.40x = 130,154.10 × 49,444.60
  4. Step 4: Simplify right side
    86,769.40x = 6,435,417,412.86
  5. Step 5: Solve for x
    x = 6,435,417,412.86/86,769.40
  6. Step 6: Final answer
    x = 74,166.90

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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.