Home / 53,691.20-74,163.63-40,866.50

Finding the Fourth Proportional to 53,691.20, 74,163.63 and 40,866.50

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Solution

The fourth proportional to 53,691.20, 74,163.63 and 40,866.50 is: 56,448.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,691.20 : 74,163.63 = 40,866.50 : x
  2. Step 2: Convert to fraction form
    53,691.20/74,163.63 = 40,866.50/x
  3. Step 3: Cross multiply
    53,691.20x = 74,163.63 × 40,866.50
  4. Step 4: Simplify right side
    53,691.20x = 3,030,807,985.40
  5. Step 5: Solve for x
    x = 3,030,807,985.40/53,691.20
  6. Step 6: Final answer
    x = 56,448.88

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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.