Home / 90,051.58-135,158.78-47,966.82

Finding the Fourth Proportional to 90,051.58, 135,158.78 and 47,966.82

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Solution

The fourth proportional to 90,051.58, 135,158.78 and 47,966.82 is: 71,993.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,051.58 : 135,158.78 = 47,966.82 : x
  2. Step 2: Convert to fraction form
    90,051.58/135,158.78 = 47,966.82/x
  3. Step 3: Cross multiply
    90,051.58x = 135,158.78 × 47,966.82
  4. Step 4: Simplify right side
    90,051.58x = 6,483,136,871.68
  5. Step 5: Solve for x
    x = 6,483,136,871.68/90,051.58
  6. Step 6: Final answer
    x = 71,993.59

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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.