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Finding the Fourth Proportional to 65,698.94, 98,547.02 and 21,325.62

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Solution

The fourth proportional to 65,698.94, 98,547.02 and 21,325.62 is: 31,987.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,698.94 : 98,547.02 = 21,325.62 : x
  2. Step 2: Convert to fraction form
    65,698.94/98,547.02 = 21,325.62/x
  3. Step 3: Cross multiply
    65,698.94x = 98,547.02 × 21,325.62
  4. Step 4: Simplify right side
    65,698.94x = 2,101,575,701.29
  5. Step 5: Solve for x
    x = 2,101,575,701.29/65,698.94
  6. Step 6: Final answer
    x = 31,987.97

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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.