Home / 61,365.04-84,682.28-40,143.85

Finding the Fourth Proportional to 61,365.04, 84,682.28 and 40,143.85

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Solution

The fourth proportional to 61,365.04, 84,682.28 and 40,143.85 is: 55,397.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,365.04 : 84,682.28 = 40,143.85 : x
  2. Step 2: Convert to fraction form
    61,365.04/84,682.28 = 40,143.85/x
  3. Step 3: Cross multiply
    61,365.04x = 84,682.28 × 40,143.85
  4. Step 4: Simplify right side
    61,365.04x = 3,399,472,634.63
  5. Step 5: Solve for x
    x = 3,399,472,634.63/61,365.04
  6. Step 6: Final answer
    x = 55,397.55

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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.