Home / 88,197.72-121,715.08-47,911.48

Finding the Fourth Proportional to 88,197.72, 121,715.08 and 47,911.48

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Solution

The fourth proportional to 88,197.72, 121,715.08 and 47,911.48 is: 66,119.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,197.72 : 121,715.08 = 47,911.48 : x
  2. Step 2: Convert to fraction form
    88,197.72/121,715.08 = 47,911.48/x
  3. Step 3: Cross multiply
    88,197.72x = 121,715.08 × 47,911.48
  4. Step 4: Simplify right side
    88,197.72x = 5,831,549,621.12
  5. Step 5: Solve for x
    x = 5,831,549,621.12/88,197.72
  6. Step 6: Final answer
    x = 66,119.05

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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.