Home / 65,588.41-98,385.69-21,218.63

Finding the Fourth Proportional to 65,588.41, 98,385.69 and 21,218.63

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Solution

The fourth proportional to 65,588.41, 98,385.69 and 21,218.63 is: 31,828.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,588.41 : 98,385.69 = 21,218.63 : x
  2. Step 2: Convert to fraction form
    65,588.41/98,385.69 = 21,218.63/x
  3. Step 3: Cross multiply
    65,588.41x = 98,385.69 × 21,218.63
  4. Step 4: Simplify right side
    65,588.41x = 2,087,609,851.82
  5. Step 5: Solve for x
    x = 2,087,609,851.82/65,588.41
  6. Step 6: Final answer
    x = 31,828.95

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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.