Home / 81,633.85-122,427.58-31,703.29

Finding the Fourth Proportional to 81,633.85, 122,427.58 and 31,703.29

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Solution

The fourth proportional to 81,633.85, 122,427.58 and 31,703.29 is: 47,545.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,633.85 : 122,427.58 = 31,703.29 : x
  2. Step 2: Convert to fraction form
    81,633.85/122,427.58 = 31,703.29/x
  3. Step 3: Cross multiply
    81,633.85x = 122,427.58 × 31,703.29
  4. Step 4: Simplify right side
    81,633.85x = 3,881,357,072.74
  5. Step 5: Solve for x
    x = 3,881,357,072.74/81,633.85
  6. Step 6: Final answer
    x = 47,545.93

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1.5x scale

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.