Home / 65,477.18-98,215.70-21,110.51

Finding the Fourth Proportional to 65,477.18, 98,215.70 and 21,110.51

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Solution

The fourth proportional to 65,477.18, 98,215.70 and 21,110.51 is: 31,665.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,477.18 : 98,215.70 = 21,110.51 : x
  2. Step 2: Convert to fraction form
    65,477.18/98,215.70 = 21,110.51/x
  3. Step 3: Cross multiply
    65,477.18x = 98,215.70 × 21,110.51
  4. Step 4: Simplify right side
    65,477.18x = 2,073,382,920.38
  5. Step 5: Solve for x
    x = 2,073,382,920.38/65,477.18
  6. Step 6: Final answer
    x = 31,665.74

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1.5x scale

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.