Home / 78,711.03-118,083.02-43,577.01

Finding the Fourth Proportional to 78,711.03, 118,083.02 and 43,577.01

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Solution

The fourth proportional to 78,711.03, 118,083.02 and 43,577.01 is: 65,374.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,711.03 : 118,083.02 = 43,577.01 : x
  2. Step 2: Convert to fraction form
    78,711.03/118,083.02 = 43,577.01/x
  3. Step 3: Cross multiply
    78,711.03x = 118,083.02 × 43,577.01
  4. Step 4: Simplify right side
    78,711.03x = 5,145,704,725.49
  5. Step 5: Solve for x
    x = 5,145,704,725.49/78,711.03
  6. Step 6: Final answer
    x = 65,374.63

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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.