Home / 57,535.02-86,288.76-21,988.98

Finding the Fourth Proportional to 57,535.02, 86,288.76 and 21,988.98

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Solution

The fourth proportional to 57,535.02, 86,288.76 and 21,988.98 is: 32,978.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,535.02 : 86,288.76 = 21,988.98 : x
  2. Step 2: Convert to fraction form
    57,535.02/86,288.76 = 21,988.98/x
  3. Step 3: Cross multiply
    57,535.02x = 86,288.76 × 21,988.98
  4. Step 4: Simplify right side
    57,535.02x = 1,897,401,817.86
  5. Step 5: Solve for x
    x = 1,897,401,817.86/57,535.02
  6. Step 6: Final answer
    x = 32,978.21

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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.