Home / 43,275.48-64,905.78-12,103.32

Finding the Fourth Proportional to 43,275.48, 64,905.78 and 12,103.32

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Solution

The fourth proportional to 43,275.48, 64,905.78 and 12,103.32 is: 18,152.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,275.48 : 64,905.78 = 12,103.32 : x
  2. Step 2: Convert to fraction form
    43,275.48/64,905.78 = 12,103.32/x
  3. Step 3: Cross multiply
    43,275.48x = 64,905.78 × 12,103.32
  4. Step 4: Simplify right side
    43,275.48x = 785,575,425.19
  5. Step 5: Solve for x
    x = 785,575,425.19/43,275.48
  6. Step 6: Final answer
    x = 18,152.90

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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.