Home / 91,288.12-125,980.17-51,006.32

Finding the Fourth Proportional to 91,288.12, 125,980.17 and 51,006.32

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Solution

The fourth proportional to 91,288.12, 125,980.17 and 51,006.32 is: 70,390.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,288.12 : 125,980.17 = 51,006.32 : x
  2. Step 2: Convert to fraction form
    91,288.12/125,980.17 = 51,006.32/x
  3. Step 3: Cross multiply
    91,288.12x = 125,980.17 × 51,006.32
  4. Step 4: Simplify right side
    91,288.12x = 6,425,784,864.67
  5. Step 5: Solve for x
    x = 6,425,784,864.67/91,288.12
  6. Step 6: Final answer
    x = 70,390.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.