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Finding the Fourth Proportional to 52,983.74, 79,401.71 and 39,820.70

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Solution

The fourth proportional to 52,983.74, 79,401.71 and 39,820.70 is: 59,675.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,983.74 : 79,401.71 = 39,820.70 : x
  2. Step 2: Convert to fraction form
    52,983.74/79,401.71 = 39,820.70/x
  3. Step 3: Cross multiply
    52,983.74x = 79,401.71 × 39,820.70
  4. Step 4: Simplify right side
    52,983.74x = 3,161,831,673.40
  5. Step 5: Solve for x
    x = 3,161,831,673.40/52,983.74
  6. Step 6: Final answer
    x = 59,675.51

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1.5x scale

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.