Home / 63,140.45-87,098.49-40,127.81

Finding the Fourth Proportional to 63,140.45, 87,098.49 and 40,127.81

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Solution

The fourth proportional to 63,140.45, 87,098.49 and 40,127.81 is: 55,353.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,140.45 : 87,098.49 = 40,127.81 : x
  2. Step 2: Convert to fraction form
    63,140.45/87,098.49 = 40,127.81/x
  3. Step 3: Cross multiply
    63,140.45x = 87,098.49 × 40,127.81
  4. Step 4: Simplify right side
    63,140.45x = 3,495,071,222.51
  5. Step 5: Solve for x
    x = 3,495,071,222.51/63,140.45
  6. Step 6: Final answer
    x = 55,353.92

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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.