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Finding the Fourth Proportional to 86,980.32, 130,471.08 and 23,799.08

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Solution

The fourth proportional to 86,980.32, 130,471.08 and 23,799.08 is: 35,698.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,980.32 : 130,471.08 = 23,799.08 : x
  2. Step 2: Convert to fraction form
    86,980.32/130,471.08 = 23,799.08/x
  3. Step 3: Cross multiply
    86,980.32x = 130,471.08 × 23,799.08
  4. Step 4: Simplify right side
    86,980.32x = 3,105,091,670.61
  5. Step 5: Solve for x
    x = 3,105,091,670.61/86,980.32
  6. Step 6: Final answer
    x = 35,698.78

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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.