Home / 77,575.02-116,360.21-21,418.56

Finding the Fourth Proportional to 77,575.02, 116,360.21 and 21,418.56

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Solution

The fourth proportional to 77,575.02, 116,360.21 and 21,418.56 is: 32,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,575.02 : 116,360.21 = 21,418.56 : x
  2. Step 2: Convert to fraction form
    77,575.02/116,360.21 = 21,418.56/x
  3. Step 3: Cross multiply
    77,575.02x = 116,360.21 × 21,418.56
  4. Step 4: Simplify right side
    77,575.02x = 2,492,268,032.40
  5. Step 5: Solve for x
    x = 2,492,268,032.40/77,575.02
  6. Step 6: Final answer
    x = 32,127.20

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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.