Home / 66,368.74-99,565.38-18,981.82

Finding the Fourth Proportional to 66,368.74, 99,565.38 and 18,981.82

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Solution

The fourth proportional to 66,368.74, 99,565.38 and 18,981.82 is: 28,476.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,368.74 : 99,565.38 = 18,981.82 : x
  2. Step 2: Convert to fraction form
    66,368.74/99,565.38 = 18,981.82/x
  3. Step 3: Cross multiply
    66,368.74x = 99,565.38 × 18,981.82
  4. Step 4: Simplify right side
    66,368.74x = 1,889,932,121.39
  5. Step 5: Solve for x
    x = 1,889,932,121.39/66,368.74
  6. Step 6: Final answer
    x = 28,476.24

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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.