Home / 71,110.08-98,130.24-39,276.48

Finding the Fourth Proportional to 71,110.08, 98,130.24 and 39,276.48

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Solution

The fourth proportional to 71,110.08, 98,130.24 and 39,276.48 is: 54,200.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,110.08 : 98,130.24 = 39,276.48 : x
  2. Step 2: Convert to fraction form
    71,110.08/98,130.24 = 39,276.48/x
  3. Step 3: Cross multiply
    71,110.08x = 98,130.24 × 39,276.48
  4. Step 4: Simplify right side
    71,110.08x = 3,854,210,408.76
  5. Step 5: Solve for x
    x = 3,854,210,408.76/71,110.08
  6. Step 6: Final answer
    x = 54,200.62

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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.