Home / 74,270.60-102,493.48-40,279.08

Finding the Fourth Proportional to 74,270.60, 102,493.48 and 40,279.08

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Solution

The fourth proportional to 74,270.60, 102,493.48 and 40,279.08 is: 55,585.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,270.60 : 102,493.48 = 40,279.08 : x
  2. Step 2: Convert to fraction form
    74,270.60/102,493.48 = 40,279.08/x
  3. Step 3: Cross multiply
    74,270.60x = 102,493.48 × 40,279.08
  4. Step 4: Simplify right side
    74,270.60x = 4,128,342,879.00
  5. Step 5: Solve for x
    x = 4,128,342,879.00/74,270.60
  6. Step 6: Final answer
    x = 55,585.16

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1.5x scale

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.