Home / 77,569.02-116,351.21-21,412.55

Finding the Fourth Proportional to 77,569.02, 116,351.21 and 21,412.55

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Solution

The fourth proportional to 77,569.02, 116,351.21 and 21,412.55 is: 32,118.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,569.02 : 116,351.21 = 21,412.55 : x
  2. Step 2: Convert to fraction form
    77,569.02/116,351.21 = 21,412.55/x
  3. Step 3: Cross multiply
    77,569.02x = 116,351.21 × 21,412.55
  4. Step 4: Simplify right side
    77,569.02x = 2,491,376,385.87
  5. Step 5: Solve for x
    x = 2,491,376,385.87/77,569.02
  6. Step 6: Final answer
    x = 32,118.19

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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.