Home / 58,146.05-87,219.41-20,707.58

Finding the Fourth Proportional to 58,146.05, 87,219.41 and 20,707.58

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Solution

The fourth proportional to 58,146.05, 87,219.41 and 20,707.58 is: 31,061.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,146.05 : 87,219.41 = 20,707.58 : x
  2. Step 2: Convert to fraction form
    58,146.05/87,219.41 = 20,707.58/x
  3. Step 3: Cross multiply
    58,146.05x = 87,219.41 × 20,707.58
  4. Step 4: Simplify right side
    58,146.05x = 1,806,102,370.49
  5. Step 5: Solve for x
    x = 1,806,102,370.49/58,146.05
  6. Step 6: Final answer
    x = 31,061.48

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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.