Home / 74,291.80-102,497.75-42,438.15

Finding the Fourth Proportional to 74,291.80, 102,497.75 and 42,438.15

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Solution

The fourth proportional to 74,291.80, 102,497.75 and 42,438.15 is: 58,550.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,291.80 : 102,497.75 = 42,438.15 : x
  2. Step 2: Convert to fraction form
    74,291.80/102,497.75 = 42,438.15/x
  3. Step 3: Cross multiply
    74,291.80x = 102,497.75 × 42,438.15
  4. Step 4: Simplify right side
    74,291.80x = 4,349,814,376.67
  5. Step 5: Solve for x
    x = 4,349,814,376.67/74,291.80
  6. Step 6: Final answer
    x = 58,550.40

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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.