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Finding the Fourth Proportional to 58,257.81, 87,198.76 and 30,139.14

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Solution

The fourth proportional to 58,257.81, 87,198.76 and 30,139.14 is: 45,111.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,257.81 : 87,198.76 = 30,139.14 : x
  2. Step 2: Convert to fraction form
    58,257.81/87,198.76 = 30,139.14/x
  3. Step 3: Cross multiply
    58,257.81x = 87,198.76 × 30,139.14
  4. Step 4: Simplify right side
    58,257.81x = 2,628,095,635.47
  5. Step 5: Solve for x
    x = 2,628,095,635.47/58,257.81
  6. Step 6: Final answer
    x = 45,111.47

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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.