Home / 105,630.50-145,773.64-57,883.43

Finding the Fourth Proportional to 105,630.50, 145,773.64 and 57,883.43

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Solution

The fourth proportional to 105,630.50, 145,773.64 and 57,883.43 is: 79,881.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,630.50 : 145,773.64 = 57,883.43 : x
  2. Step 2: Convert to fraction form
    105,630.50/145,773.64 = 57,883.43/x
  3. Step 3: Cross multiply
    105,630.50x = 145,773.64 × 57,883.43
  4. Step 4: Simplify right side
    105,630.50x = 8,437,878,723.57
  5. Step 5: Solve for x
    x = 8,437,878,723.57/105,630.50
  6. Step 6: Final answer
    x = 79,881.08

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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.