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Finding the Fourth Proportional to 64,107.60, 96,031.80 and 43,112.40

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Solution

The fourth proportional to 64,107.60, 96,031.80 and 43,112.40 is: 64,581.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,107.60 : 96,031.80 = 43,112.40 : x
  2. Step 2: Convert to fraction form
    64,107.60/96,031.80 = 43,112.40/x
  3. Step 3: Cross multiply
    64,107.60x = 96,031.80 × 43,112.40
  4. Step 4: Simplify right side
    64,107.60x = 4,140,161,374.32
  5. Step 5: Solve for x
    x = 4,140,161,374.32/64,107.60
  6. Step 6: Final answer
    x = 64,581.44

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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.