Home / 70,813.28-106,238.37-26,440.40

Finding the Fourth Proportional to 70,813.28, 106,238.37 and 26,440.40

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Solution

The fourth proportional to 70,813.28, 106,238.37 and 26,440.40 is: 39,667.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,813.28 : 106,238.37 = 26,440.40 : x
  2. Step 2: Convert to fraction form
    70,813.28/106,238.37 = 26,440.40/x
  3. Step 3: Cross multiply
    70,813.28x = 106,238.37 × 26,440.40
  4. Step 4: Simplify right side
    70,813.28x = 2,808,984,998.15
  5. Step 5: Solve for x
    x = 2,808,984,998.15/70,813.28
  6. Step 6: Final answer
    x = 39,667.49

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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.