Home / 65,689.40-98,567.06-30,631.80

Finding the Fourth Proportional to 65,689.40, 98,567.06 and 30,631.80

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Solution

The fourth proportional to 65,689.40, 98,567.06 and 30,631.80 is: 45,963.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,689.40 : 98,567.06 = 30,631.80 : x
  2. Step 2: Convert to fraction form
    65,689.40/98,567.06 = 30,631.80/x
  3. Step 3: Cross multiply
    65,689.40x = 98,567.06 × 30,631.80
  4. Step 4: Simplify right side
    65,689.40x = 3,019,286,468.51
  5. Step 5: Solve for x
    x = 3,019,286,468.51/65,689.40
  6. Step 6: Final answer
    x = 45,963.07

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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.