Home / 91,030.80-136,546.20-51,664.80

Finding the Fourth Proportional to 91,030.80, 136,546.20 and 51,664.80

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Solution

The fourth proportional to 91,030.80, 136,546.20 and 51,664.80 is: 77,497.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,030.80 : 136,546.20 = 51,664.80 : x
  2. Step 2: Convert to fraction form
    91,030.80/136,546.20 = 51,664.80/x
  3. Step 3: Cross multiply
    91,030.80x = 136,546.20 × 51,664.80
  4. Step 4: Simplify right side
    91,030.80x = 7,054,632,113.76
  5. Step 5: Solve for x
    x = 7,054,632,113.76/91,030.80
  6. Step 6: Final answer
    x = 77,497.20

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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.