Home / 65,658.12-98,538.75-45,807.45

Finding the Fourth Proportional to 65,658.12, 98,538.75 and 45,807.45

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Solution

The fourth proportional to 65,658.12, 98,538.75 and 45,807.45 is: 68,747.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,658.12 : 98,538.75 = 45,807.45 : x
  2. Step 2: Convert to fraction form
    65,658.12/98,538.75 = 45,807.45/x
  3. Step 3: Cross multiply
    65,658.12x = 98,538.75 × 45,807.45
  4. Step 4: Simplify right side
    65,658.12x = 4,513,808,863.69
  5. Step 5: Solve for x
    x = 4,513,808,863.69/65,658.12
  6. Step 6: Final answer
    x = 68,747.15

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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.