Home / 105,502.80-145,595.60-57,755.36

Finding the Fourth Proportional to 105,502.80, 145,595.60 and 57,755.36

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Solution

The fourth proportional to 105,502.80, 145,595.60 and 57,755.36 is: 79,703.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,502.80 : 145,595.60 = 57,755.36 : x
  2. Step 2: Convert to fraction form
    105,502.80/145,595.60 = 57,755.36/x
  3. Step 3: Cross multiply
    105,502.80x = 145,595.60 × 57,755.36
  4. Step 4: Simplify right side
    105,502.80x = 8,408,926,292.42
  5. Step 5: Solve for x
    x = 8,408,926,292.42/105,502.80
  6. Step 6: Final answer
    x = 79,703.35

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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.