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Finding the Fourth Proportional to 65,551.25, 98,342.67 and 18,803.72

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Solution

The fourth proportional to 65,551.25, 98,342.67 and 18,803.72 is: 28,210.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,551.25 : 98,342.67 = 18,803.72 : x
  2. Step 2: Convert to fraction form
    65,551.25/98,342.67 = 18,803.72/x
  3. Step 3: Cross multiply
    65,551.25x = 98,342.67 × 18,803.72
  4. Step 4: Simplify right side
    65,551.25x = 1,849,208,030.73
  5. Step 5: Solve for x
    x = 1,849,208,030.73/65,551.25
  6. Step 6: Final answer
    x = 28,210.11

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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.