Home / 86,444.78-129,444.87-69,498.14

Finding the Fourth Proportional to 86,444.78, 129,444.87 and 69,498.14

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Solution

The fourth proportional to 86,444.78, 129,444.87 and 69,498.14 is: 104,068.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,444.78 : 129,444.87 = 69,498.14 : x
  2. Step 2: Convert to fraction form
    86,444.78/129,444.87 = 69,498.14/x
  3. Step 3: Cross multiply
    86,444.78x = 129,444.87 × 69,498.14
  4. Step 4: Simplify right side
    86,444.78x = 8,996,177,697.54
  5. Step 5: Solve for x
    x = 8,996,177,697.54/86,444.78
  6. Step 6: Final answer
    x = 104,068.49

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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.