Home / 91,294.12-125,985.54-51,011.56

Finding the Fourth Proportional to 91,294.12, 125,985.54 and 51,011.56

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Solution

The fourth proportional to 91,294.12, 125,985.54 and 51,011.56 is: 70,395.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,294.12 : 125,985.54 = 51,011.56 : x
  2. Step 2: Convert to fraction form
    91,294.12/125,985.54 = 51,011.56/x
  3. Step 3: Cross multiply
    91,294.12x = 125,985.54 × 51,011.56
  4. Step 4: Simplify right side
    91,294.12x = 6,426,718,932.84
  5. Step 5: Solve for x
    x = 6,426,718,932.84/91,294.12
  6. Step 6: Final answer
    x = 70,395.76

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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.