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Finding the Fourth Proportional to 86,709.60, 130,064.40 and 24,380.10

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Solution

The fourth proportional to 86,709.60, 130,064.40 and 24,380.10 is: 36,570.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,709.60 : 130,064.40 = 24,380.10 : x
  2. Step 2: Convert to fraction form
    86,709.60/130,064.40 = 24,380.10/x
  3. Step 3: Cross multiply
    86,709.60x = 130,064.40 × 24,380.10
  4. Step 4: Simplify right side
    86,709.60x = 3,170,983,078.44
  5. Step 5: Solve for x
    x = 3,170,983,078.44/86,709.60
  6. Step 6: Final answer
    x = 36,570.15

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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.