Home / 65,911.02-98,865.69-15,991.50

Finding the Fourth Proportional to 65,911.02, 98,865.69 and 15,991.50

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Solution

The fourth proportional to 65,911.02, 98,865.69 and 15,991.50 is: 23,987.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,911.02 : 98,865.69 = 15,991.50 : x
  2. Step 2: Convert to fraction form
    65,911.02/98,865.69 = 15,991.50/x
  3. Step 3: Cross multiply
    65,911.02x = 98,865.69 × 15,991.50
  4. Step 4: Simplify right side
    65,911.02x = 1,581,010,681.64
  5. Step 5: Solve for x
    x = 1,581,010,681.64/65,911.02
  6. Step 6: Final answer
    x = 23,987.05

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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.