Home / 74,890.40-103,347.78-40,902.02

Finding the Fourth Proportional to 74,890.40, 103,347.78 and 40,902.02

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Solution

The fourth proportional to 74,890.40, 103,347.78 and 40,902.02 is: 56,444.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,890.40 : 103,347.78 = 40,902.02 : x
  2. Step 2: Convert to fraction form
    74,890.40/103,347.78 = 40,902.02/x
  3. Step 3: Cross multiply
    74,890.40x = 103,347.78 × 40,902.02
  4. Step 4: Simplify right side
    74,890.40x = 4,227,132,964.52
  5. Step 5: Solve for x
    x = 4,227,132,964.52/74,890.40
  6. Step 6: Final answer
    x = 56,444.26

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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.