Home / 91,621.04-126,441.60-55,805.32

Finding the Fourth Proportional to 91,621.04, 126,441.60 and 55,805.32

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Solution

The fourth proportional to 91,621.04, 126,441.60 and 55,805.32 is: 77,014.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,621.04 : 126,441.60 = 55,805.32 : x
  2. Step 2: Convert to fraction form
    91,621.04/126,441.60 = 55,805.32/x
  3. Step 3: Cross multiply
    91,621.04x = 126,441.60 × 55,805.32
  4. Step 4: Simplify right side
    91,621.04x = 7,056,113,949.31
  5. Step 5: Solve for x
    x = 7,056,113,949.31/91,621.04
  6. Step 6: Final answer
    x = 77,014.12

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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.