Home / 91,471.88-137,233.74-47,130.92

Finding the Fourth Proportional to 91,471.88, 137,233.74 and 47,130.92

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Solution

The fourth proportional to 91,471.88, 137,233.74 and 47,130.92 is: 70,709.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,471.88 : 137,233.74 = 47,130.92 : x
  2. Step 2: Convert to fraction form
    91,471.88/137,233.74 = 47,130.92/x
  3. Step 3: Cross multiply
    91,471.88x = 137,233.74 × 47,130.92
  4. Step 4: Simplify right side
    91,471.88x = 6,467,952,421.24
  5. Step 5: Solve for x
    x = 6,467,952,421.24/91,471.88
  6. Step 6: Final answer
    x = 70,709.74

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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.