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Finding the Fourth Proportional to 86,818.60, 130,130.70 and 44,682.40

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Solution

The fourth proportional to 86,818.60, 130,130.70 and 44,682.40 is: 66,973.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,818.60 : 130,130.70 = 44,682.40 : x
  2. Step 2: Convert to fraction form
    86,818.60/130,130.70 = 44,682.40/x
  3. Step 3: Cross multiply
    86,818.60x = 130,130.70 × 44,682.40
  4. Step 4: Simplify right side
    86,818.60x = 5,814,551,989.68
  5. Step 5: Solve for x
    x = 5,814,551,989.68/86,818.60
  6. Step 6: Final answer
    x = 66,973.57

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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.