Home / 91,214.15-136,821.23-51,848.15

Finding the Fourth Proportional to 91,214.15, 136,821.23 and 51,848.15

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Solution

The fourth proportional to 91,214.15, 136,821.23 and 51,848.15 is: 77,772.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,214.15 : 136,821.23 = 51,848.15 : x
  2. Step 2: Convert to fraction form
    91,214.15/136,821.23 = 51,848.15/x
  3. Step 3: Cross multiply
    91,214.15x = 136,821.23 × 51,848.15
  4. Step 4: Simplify right side
    91,214.15x = 7,093,927,396.98
  5. Step 5: Solve for x
    x = 7,093,927,396.98/91,214.15
  6. Step 6: Final answer
    x = 77,772.23

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Similar ratio
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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.