Home / 90,374.42-135,386.58-43,660.10

Finding the Fourth Proportional to 90,374.42, 135,386.58 and 43,660.10

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Solution

The fourth proportional to 90,374.42, 135,386.58 and 43,660.10 is: 65,405.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,374.42 : 135,386.58 = 43,660.10 : x
  2. Step 2: Convert to fraction form
    90,374.42/135,386.58 = 43,660.10/x
  3. Step 3: Cross multiply
    90,374.42x = 135,386.58 × 43,660.10
  4. Step 4: Simplify right side
    90,374.42x = 5,910,991,621.46
  5. Step 5: Solve for x
    x = 5,910,991,621.46/90,374.42
  6. Step 6: Final answer
    x = 65,405.58

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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.