Home / 71,323.40-106,985.10-59,918.60

Finding the Fourth Proportional to 71,323.40, 106,985.10 and 59,918.60

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Solution

The fourth proportional to 71,323.40, 106,985.10 and 59,918.60 is: 89,877.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,323.40 : 106,985.10 = 59,918.60 : x
  2. Step 2: Convert to fraction form
    71,323.40/106,985.10 = 59,918.60/x
  3. Step 3: Cross multiply
    71,323.40x = 106,985.10 × 59,918.60
  4. Step 4: Simplify right side
    71,323.40x = 6,410,397,412.86
  5. Step 5: Solve for x
    x = 6,410,397,412.86/71,323.40
  6. Step 6: Final answer
    x = 89,877.90

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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.