Home / 105,490.66-145,577.10-57,744.04

Finding the Fourth Proportional to 105,490.66, 145,577.10 and 57,744.04

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Solution

The fourth proportional to 105,490.66, 145,577.10 and 57,744.04 is: 79,686.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,490.66 : 145,577.10 = 57,744.04 : x
  2. Step 2: Convert to fraction form
    105,490.66/145,577.10 = 57,744.04/x
  3. Step 3: Cross multiply
    105,490.66x = 145,577.10 × 57,744.04
  4. Step 4: Simplify right side
    105,490.66x = 8,406,209,885.48
  5. Step 5: Solve for x
    x = 8,406,209,885.48/105,490.66
  6. Step 6: Final answer
    x = 79,686.77

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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.