Home / 65,434.16-98,166.90-21,065.06

Finding the Fourth Proportional to 65,434.16, 98,166.90 and 21,065.06

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Solution

The fourth proportional to 65,434.16, 98,166.90 and 21,065.06 is: 31,602.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,434.16 : 98,166.90 = 21,065.06 : x
  2. Step 2: Convert to fraction form
    65,434.16/98,166.90 = 21,065.06/x
  3. Step 3: Cross multiply
    65,434.16x = 98,166.90 × 21,065.06
  4. Step 4: Simplify right side
    65,434.16x = 2,067,891,638.51
  5. Step 5: Solve for x
    x = 2,067,891,638.51/65,434.16
  6. Step 6: Final answer
    x = 31,602.63

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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.