Home / 65,284.32-97,924.80-20,909.28

Finding the Fourth Proportional to 65,284.32, 97,924.80 and 20,909.28

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Solution

The fourth proportional to 65,284.32, 97,924.80 and 20,909.28 is: 31,363.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,284.32 : 97,924.80 = 20,909.28 : x
  2. Step 2: Convert to fraction form
    65,284.32/97,924.80 = 20,909.28/x
  3. Step 3: Cross multiply
    65,284.32x = 97,924.80 × 20,909.28
  4. Step 4: Simplify right side
    65,284.32x = 2,047,537,062.14
  5. Step 5: Solve for x
    x = 2,047,537,062.14/65,284.32
  6. Step 6: Final answer
    x = 31,363.38

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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.