Home / 52,084.98-78,127.51-12,642.13

Finding the Fourth Proportional to 52,084.98, 78,127.51 and 12,642.13

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Solution

The fourth proportional to 52,084.98, 78,127.51 and 12,642.13 is: 18,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,084.98 : 78,127.51 = 12,642.13 : x
  2. Step 2: Convert to fraction form
    52,084.98/78,127.51 = 12,642.13/x
  3. Step 3: Cross multiply
    52,084.98x = 78,127.51 × 12,642.13
  4. Step 4: Simplify right side
    52,084.98x = 987,698,138.00
  5. Step 5: Solve for x
    x = 987,698,138.00/52,084.98
  6. Step 6: Final answer
    x = 18,963.20

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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.