Home / 90,038.13-135,057.06-26,856.60

Finding the Fourth Proportional to 90,038.13, 135,057.06 and 26,856.60

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Solution

The fourth proportional to 90,038.13, 135,057.06 and 26,856.60 is: 40,284.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,038.13 : 135,057.06 = 26,856.60 : x
  2. Step 2: Convert to fraction form
    90,038.13/135,057.06 = 26,856.60/x
  3. Step 3: Cross multiply
    90,038.13x = 135,057.06 × 26,856.60
  4. Step 4: Simplify right side
    90,038.13x = 3,627,173,437.60
  5. Step 5: Solve for x
    x = 3,627,173,437.60/90,038.13
  6. Step 6: Final answer
    x = 40,284.86

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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.