Home / 65,386.23-98,082.86-21,009.57

Finding the Fourth Proportional to 65,386.23, 98,082.86 and 21,009.57

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Solution

The fourth proportional to 65,386.23, 98,082.86 and 21,009.57 is: 31,515.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,386.23 : 98,082.86 = 21,009.57 : x
  2. Step 2: Convert to fraction form
    65,386.23/98,082.86 = 21,009.57/x
  3. Step 3: Cross multiply
    65,386.23x = 98,082.86 × 21,009.57
  4. Step 4: Simplify right side
    65,386.23x = 2,060,678,607.92
  5. Step 5: Solve for x
    x = 2,060,678,607.92/65,386.23
  6. Step 6: Final answer
    x = 31,515.48

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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.