Home / 66,079.95-99,135.32-19,336.47

Finding the Fourth Proportional to 66,079.95, 99,135.32 and 19,336.47

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Solution

The fourth proportional to 66,079.95, 99,135.32 and 19,336.47 is: 29,009.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,079.95 : 99,135.32 = 19,336.47 : x
  2. Step 2: Convert to fraction form
    66,079.95/99,135.32 = 19,336.47/x
  3. Step 3: Cross multiply
    66,079.95x = 99,135.32 × 19,336.47
  4. Step 4: Simplify right side
    66,079.95x = 1,916,927,044.44
  5. Step 5: Solve for x
    x = 1,916,927,044.44/66,079.95
  6. Step 6: Final answer
    x = 29,009.21

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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.