Home / 72,476.31-100,013.93-40,210.59

Finding the Fourth Proportional to 72,476.31, 100,013.93 and 40,210.59

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Solution

The fourth proportional to 72,476.31, 100,013.93 and 40,210.59 is: 55,488.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,476.31 : 100,013.93 = 40,210.59 : x
  2. Step 2: Convert to fraction form
    72,476.31/100,013.93 = 40,210.59/x
  3. Step 3: Cross multiply
    72,476.31x = 100,013.93 × 40,210.59
  4. Step 4: Simplify right side
    72,476.31x = 4,021,618,727.53
  5. Step 5: Solve for x
    x = 4,021,618,727.53/72,476.31
  6. Step 6: Final answer
    x = 55,488.73

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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.