Home / 65,717.16-98,603.99-21,357.51

Finding the Fourth Proportional to 65,717.16, 98,603.99 and 21,357.51

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Solution

The fourth proportional to 65,717.16, 98,603.99 and 21,357.51 is: 32,045.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,717.16 : 98,603.99 = 21,357.51 : x
  2. Step 2: Convert to fraction form
    65,717.16/98,603.99 = 21,357.51/x
  3. Step 3: Cross multiply
    65,717.16x = 98,603.99 × 21,357.51
  4. Step 4: Simplify right side
    65,717.16x = 2,105,935,702.46
  5. Step 5: Solve for x
    x = 2,105,935,702.46/65,717.16
  6. Step 6: Final answer
    x = 32,045.45

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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.