Home / 70,141.39-105,263.98-38,545.56

Finding the Fourth Proportional to 70,141.39, 105,263.98 and 38,545.56

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Solution

The fourth proportional to 70,141.39, 105,263.98 and 38,545.56 is: 57,846.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,141.39 : 105,263.98 = 38,545.56 : x
  2. Step 2: Convert to fraction form
    70,141.39/105,263.98 = 38,545.56/x
  3. Step 3: Cross multiply
    70,141.39x = 105,263.98 × 38,545.56
  4. Step 4: Simplify right side
    70,141.39x = 4,057,458,960.56
  5. Step 5: Solve for x
    x = 4,057,458,960.56/70,141.39
  6. Step 6: Final answer
    x = 57,846.86

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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.