Home / 71,101.06-98,074.98-42,400.60

Finding the Fourth Proportional to 71,101.06, 98,074.98 and 42,400.60

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Solution

The fourth proportional to 71,101.06, 98,074.98 and 42,400.60 is: 58,486.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,101.06 : 98,074.98 = 42,400.60 : x
  2. Step 2: Convert to fraction form
    71,101.06/98,074.98 = 42,400.60/x
  3. Step 3: Cross multiply
    71,101.06x = 98,074.98 × 42,400.60
  4. Step 4: Simplify right side
    71,101.06x = 4,158,437,996.99
  5. Step 5: Solve for x
    x = 4,158,437,996.99/71,101.06
  6. Step 6: Final answer
    x = 58,486.30

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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.