Home / 91,106.29-136,632.70-31,930.93

Finding the Fourth Proportional to 91,106.29, 136,632.70 and 31,930.93

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Solution

The fourth proportional to 91,106.29, 136,632.70 and 31,930.93 is: 47,887.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,106.29 : 136,632.70 = 31,930.93 : x
  2. Step 2: Convert to fraction form
    91,106.29/136,632.70 = 31,930.93/x
  3. Step 3: Cross multiply
    91,106.29x = 136,632.70 × 31,930.93
  4. Step 4: Simplify right side
    91,106.29x = 4,362,809,179.41
  5. Step 5: Solve for x
    x = 4,362,809,179.41/91,106.29
  6. Step 6: Final answer
    x = 47,887.02

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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.