Home / 52,001.40-78,002.10-51,223.80

Finding the Fourth Proportional to 52,001.40, 78,002.10 and 51,223.80

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Solution

The fourth proportional to 52,001.40, 78,002.10 and 51,223.80 is: 76,835.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,001.40 : 78,002.10 = 51,223.80 : x
  2. Step 2: Convert to fraction form
    52,001.40/78,002.10 = 51,223.80/x
  3. Step 3: Cross multiply
    52,001.40x = 78,002.10 × 51,223.80
  4. Step 4: Simplify right side
    52,001.40x = 3,995,563,969.98
  5. Step 5: Solve for x
    x = 3,995,563,969.98/52,001.40
  6. Step 6: Final answer
    x = 76,835.70

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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.