Home / 74,210.40-111,445.20-71,877.60

Finding the Fourth Proportional to 74,210.40, 111,445.20 and 71,877.60

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Solution

The fourth proportional to 74,210.40, 111,445.20 and 71,877.60 is: 107,941.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,210.40 : 111,445.20 = 71,877.60 : x
  2. Step 2: Convert to fraction form
    74,210.40/111,445.20 = 71,877.60/x
  3. Step 3: Cross multiply
    74,210.40x = 111,445.20 × 71,877.60
  4. Step 4: Simplify right side
    74,210.40x = 8,010,413,507.52
  5. Step 5: Solve for x
    x = 8,010,413,507.52/74,210.40
  6. Step 6: Final answer
    x = 107,941.93

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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.