Home / 60,690.06-91,034.96-21,258.45

Finding the Fourth Proportional to 60,690.06, 91,034.96 and 21,258.45

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Solution

The fourth proportional to 60,690.06, 91,034.96 and 21,258.45 is: 31,887.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,690.06 : 91,034.96 = 21,258.45 : x
  2. Step 2: Convert to fraction form
    60,690.06/91,034.96 = 21,258.45/x
  3. Step 3: Cross multiply
    60,690.06x = 91,034.96 × 21,258.45
  4. Step 4: Simplify right side
    60,690.06x = 1,935,262,039.12
  5. Step 5: Solve for x
    x = 1,935,262,039.12/60,690.06
  6. Step 6: Final answer
    x = 31,887.63

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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.