Home / 55,985.20-77,182.16-40,041.84

Finding the Fourth Proportional to 55,985.20, 77,182.16 and 40,041.84

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Solution

The fourth proportional to 55,985.20, 77,182.16 and 40,041.84 is: 55,202.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,985.20 : 77,182.16 = 40,041.84 : x
  2. Step 2: Convert to fraction form
    55,985.20/77,182.16 = 40,041.84/x
  3. Step 3: Cross multiply
    55,985.20x = 77,182.16 × 40,041.84
  4. Step 4: Simplify right side
    55,985.20x = 3,090,515,701.57
  5. Step 5: Solve for x
    x = 3,090,515,701.57/55,985.20
  6. Step 6: Final answer
    x = 55,202.37

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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.