Home / 70,441.20-105,667.36-20,522.08

Finding the Fourth Proportional to 70,441.20, 105,667.36 and 20,522.08

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Solution

The fourth proportional to 70,441.20, 105,667.36 and 20,522.08 is: 30,784.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,441.20 : 105,667.36 = 20,522.08 : x
  2. Step 2: Convert to fraction form
    70,441.20/105,667.36 = 20,522.08/x
  3. Step 3: Cross multiply
    70,441.20x = 105,667.36 × 20,522.08
  4. Step 4: Simplify right side
    70,441.20x = 2,168,514,015.31
  5. Step 5: Solve for x
    x = 2,168,514,015.31/70,441.20
  6. Step 6: Final answer
    x = 30,784.74

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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.