Home / 105,454.75-145,522.88-57,710.11

Finding the Fourth Proportional to 105,454.75, 145,522.88 and 57,710.11

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Solution

The fourth proportional to 105,454.75, 145,522.88 and 57,710.11 is: 79,637.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,454.75 : 145,522.88 = 57,710.11 : x
  2. Step 2: Convert to fraction form
    105,454.75/145,522.88 = 57,710.11/x
  3. Step 3: Cross multiply
    105,454.75x = 145,522.88 × 57,710.11
  4. Step 4: Simplify right side
    105,454.75x = 8,398,140,684.70
  5. Step 5: Solve for x
    x = 8,398,140,684.70/105,454.75
  6. Step 6: Final answer
    x = 79,637.39

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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.