Home / 65,085.16-97,628.26-42,614.78

Finding the Fourth Proportional to 65,085.16, 97,628.26 and 42,614.78

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Solution

The fourth proportional to 65,085.16, 97,628.26 and 42,614.78 is: 63,922.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,085.16 : 97,628.26 = 42,614.78 : x
  2. Step 2: Convert to fraction form
    65,085.16/97,628.26 = 42,614.78/x
  3. Step 3: Cross multiply
    65,085.16x = 97,628.26 × 42,614.78
  4. Step 4: Simplify right side
    65,085.16x = 4,160,406,821.68
  5. Step 5: Solve for x
    x = 4,160,406,821.68/65,085.16
  6. Step 6: Final answer
    x = 63,922.51

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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.