Home / 52,400.18-78,561.35-47,119.78

Finding the Fourth Proportional to 52,400.18, 78,561.35 and 47,119.78

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Solution

The fourth proportional to 52,400.18, 78,561.35 and 47,119.78 is: 70,644.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,400.18 : 78,561.35 = 47,119.78 : x
  2. Step 2: Convert to fraction form
    52,400.18/78,561.35 = 47,119.78/x
  3. Step 3: Cross multiply
    52,400.18x = 78,561.35 × 47,119.78
  4. Step 4: Simplify right side
    52,400.18x = 3,701,793,528.50
  5. Step 5: Solve for x
    x = 3,701,793,528.50/52,400.18
  6. Step 6: Final answer
    x = 70,644.67

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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.