Home / 52,242.61-72,113.19-31,021.72

Finding the Fourth Proportional to 52,242.61, 72,113.19 and 31,021.72

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Solution

The fourth proportional to 52,242.61, 72,113.19 and 31,021.72 is: 42,820.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,242.61 : 72,113.19 = 31,021.72 : x
  2. Step 2: Convert to fraction form
    52,242.61/72,113.19 = 31,021.72/x
  3. Step 3: Cross multiply
    52,242.61x = 72,113.19 × 31,021.72
  4. Step 4: Simplify right side
    52,242.61x = 2,237,075,188.49
  5. Step 5: Solve for x
    x = 2,237,075,188.49/52,242.61
  6. Step 6: Final answer
    x = 42,820.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.