Home / 52,014.36-78,011.76-20,423.12

Finding the Fourth Proportional to 52,014.36, 78,011.76 and 20,423.12

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Solution

The fourth proportional to 52,014.36, 78,011.76 and 20,423.12 is: 30,630.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,014.36 : 78,011.76 = 20,423.12 : x
  2. Step 2: Convert to fraction form
    52,014.36/78,011.76 = 20,423.12/x
  3. Step 3: Cross multiply
    52,014.36x = 78,011.76 × 20,423.12
  4. Step 4: Simplify right side
    52,014.36x = 1,593,243,535.89
  5. Step 5: Solve for x
    x = 1,593,243,535.89/52,014.36
  6. Step 6: Final answer
    x = 30,630.84

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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.