Home / 71,886.02-99,204.36-40,056.86

Finding the Fourth Proportional to 71,886.02, 99,204.36 and 40,056.86

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Solution

The fourth proportional to 71,886.02, 99,204.36 and 40,056.86 is: 55,279.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,886.02 : 99,204.36 = 40,056.86 : x
  2. Step 2: Convert to fraction form
    71,886.02/99,204.36 = 40,056.86/x
  3. Step 3: Cross multiply
    71,886.02x = 99,204.36 × 40,056.86
  4. Step 4: Simplify right side
    71,886.02x = 3,973,815,159.91
  5. Step 5: Solve for x
    x = 3,973,815,159.91/71,886.02
  6. Step 6: Final answer
    x = 55,279.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.