Home / 74,705.57-103,090.68-40,713.33

Finding the Fourth Proportional to 74,705.57, 103,090.68 and 40,713.33

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Solution

The fourth proportional to 74,705.57, 103,090.68 and 40,713.33 is: 56,182.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,705.57 : 103,090.68 = 40,713.33 : x
  2. Step 2: Convert to fraction form
    74,705.57/103,090.68 = 40,713.33/x
  3. Step 3: Cross multiply
    74,705.57x = 103,090.68 × 40,713.33
  4. Step 4: Simplify right side
    74,705.57x = 4,197,164,681.47
  5. Step 5: Solve for x
    x = 4,197,164,681.47/74,705.57
  6. Step 6: Final answer
    x = 56,182.75

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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.