Home / 71,152.78-98,191.14-38,888.05

Finding the Fourth Proportional to 71,152.78, 98,191.14 and 38,888.05

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Solution

The fourth proportional to 71,152.78, 98,191.14 and 38,888.05 is: 53,665.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,152.78 : 98,191.14 = 38,888.05 : x
  2. Step 2: Convert to fraction form
    71,152.78/98,191.14 = 38,888.05/x
  3. Step 3: Cross multiply
    71,152.78x = 98,191.14 × 38,888.05
  4. Step 4: Simplify right side
    71,152.78x = 3,818,461,276.48
  5. Step 5: Solve for x
    x = 3,818,461,276.48/71,152.78
  6. Step 6: Final answer
    x = 53,665.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.