Home / 65,490.39-98,235.18-18,743.40

Finding the Fourth Proportional to 65,490.39, 98,235.18 and 18,743.40

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Solution

The fourth proportional to 65,490.39, 98,235.18 and 18,743.40 is: 28,114.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,490.39 : 98,235.18 = 18,743.40 : x
  2. Step 2: Convert to fraction form
    65,490.39/98,235.18 = 18,743.40/x
  3. Step 3: Cross multiply
    65,490.39x = 98,235.18 × 18,743.40
  4. Step 4: Simplify right side
    65,490.39x = 1,841,261,272.81
  5. Step 5: Solve for x
    x = 1,841,261,272.81/65,490.39
  6. Step 6: Final answer
    x = 28,114.98

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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.