Home / 58,660.67-87,990.50-21,206.61

Finding the Fourth Proportional to 58,660.67, 87,990.50 and 21,206.61

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Solution

The fourth proportional to 58,660.67, 87,990.50 and 21,206.61 is: 31,809.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,660.67 : 87,990.50 = 21,206.61 : x
  2. Step 2: Convert to fraction form
    58,660.67/87,990.50 = 21,206.61/x
  3. Step 3: Cross multiply
    58,660.67x = 87,990.50 × 21,206.61
  4. Step 4: Simplify right side
    58,660.67x = 1,865,980,270.22
  5. Step 5: Solve for x
    x = 1,865,980,270.22/58,660.67
  6. Step 6: Final answer
    x = 31,809.73

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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.