Home / 66,123.23-91,258.40-40,976.51

Finding the Fourth Proportional to 66,123.23, 91,258.40 and 40,976.51

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Solution

The fourth proportional to 66,123.23, 91,258.40 and 40,976.51 is: 56,552.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,123.23 : 91,258.40 = 40,976.51 : x
  2. Step 2: Convert to fraction form
    66,123.23/91,258.40 = 40,976.51/x
  3. Step 3: Cross multiply
    66,123.23x = 91,258.40 × 40,976.51
  4. Step 4: Simplify right side
    66,123.23x = 3,739,450,740.18
  5. Step 5: Solve for x
    x = 3,739,450,740.18/66,123.23
  6. Step 6: Final answer
    x = 56,552.75

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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.