Home / 58,338.82-80,398.74-40,402.18

Finding the Fourth Proportional to 58,338.82, 80,398.74 and 40,402.18

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Solution

The fourth proportional to 58,338.82, 80,398.74 and 40,402.18 is: 55,679.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,338.82 : 80,398.74 = 40,402.18 : x
  2. Step 2: Convert to fraction form
    58,338.82/80,398.74 = 40,402.18/x
  3. Step 3: Cross multiply
    58,338.82x = 80,398.74 × 40,402.18
  4. Step 4: Simplify right side
    58,338.82x = 3,248,284,365.25
  5. Step 5: Solve for x
    x = 3,248,284,365.25/58,338.82
  6. Step 6: Final answer
    x = 55,679.64

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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.