Home / 81,810.18-122,695.02-58,048.56

Finding the Fourth Proportional to 81,810.18, 122,695.02 and 58,048.56

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Solution

The fourth proportional to 81,810.18, 122,695.02 and 58,048.56 is: 87,058.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,810.18 : 122,695.02 = 58,048.56 : x
  2. Step 2: Convert to fraction form
    81,810.18/122,695.02 = 58,048.56/x
  3. Step 3: Cross multiply
    81,810.18x = 122,695.02 × 58,048.56
  4. Step 4: Simplify right side
    81,810.18x = 7,122,269,230.17
  5. Step 5: Solve for x
    x = 7,122,269,230.17/81,810.18
  6. Step 6: Final answer
    x = 87,058.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.