Home / 91,417.51-126,144.79-51,124.77

Finding the Fourth Proportional to 91,417.51, 126,144.79 and 51,124.77

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Solution

The fourth proportional to 91,417.51, 126,144.79 and 51,124.77 is: 70,545.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,417.51 : 126,144.79 = 51,124.77 : x
  2. Step 2: Convert to fraction form
    91,417.51/126,144.79 = 51,124.77/x
  3. Step 3: Cross multiply
    91,417.51x = 126,144.79 × 51,124.77
  4. Step 4: Simplify right side
    91,417.51x = 6,449,123,535.21
  5. Step 5: Solve for x
    x = 6,449,123,535.21/91,417.51
  6. Step 6: Final answer
    x = 70,545.82

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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.