Home / 85,178.64-117,560.52-47,465.04

Finding the Fourth Proportional to 85,178.64, 117,560.52 and 47,465.04

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Solution

The fourth proportional to 85,178.64, 117,560.52 and 47,465.04 is: 65,509.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,178.64 : 117,560.52 = 47,465.04 : x
  2. Step 2: Convert to fraction form
    85,178.64/117,560.52 = 47,465.04/x
  3. Step 3: Cross multiply
    85,178.64x = 117,560.52 × 47,465.04
  4. Step 4: Simplify right side
    85,178.64x = 5,580,014,784.22
  5. Step 5: Solve for x
    x = 5,580,014,784.22/85,178.64
  6. Step 6: Final answer
    x = 65,509.55

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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.