Home / 55,359.20-83,038.80-20,294.30

Finding the Fourth Proportional to 55,359.20, 83,038.80 and 20,294.30

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Solution

The fourth proportional to 55,359.20, 83,038.80 and 20,294.30 is: 30,441.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,359.20 : 83,038.80 = 20,294.30 : x
  2. Step 2: Convert to fraction form
    55,359.20/83,038.80 = 20,294.30/x
  3. Step 3: Cross multiply
    55,359.20x = 83,038.80 × 20,294.30
  4. Step 4: Simplify right side
    55,359.20x = 1,685,214,318.84
  5. Step 5: Solve for x
    x = 1,685,214,318.84/55,359.20
  6. Step 6: Final answer
    x = 30,441.45

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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.