Home / 85,005.50-117,307.59-47,278.94

Finding the Fourth Proportional to 85,005.50, 117,307.59 and 47,278.94

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Solution

The fourth proportional to 85,005.50, 117,307.59 and 47,278.94 is: 65,244.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,005.50 : 117,307.59 = 47,278.94 : x
  2. Step 2: Convert to fraction form
    85,005.50/117,307.59 = 47,278.94/x
  3. Step 3: Cross multiply
    85,005.50x = 117,307.59 × 47,278.94
  4. Step 4: Simplify right side
    85,005.50x = 5,546,178,509.15
  5. Step 5: Solve for x
    x = 5,546,178,509.15/85,005.50
  6. Step 6: Final answer
    x = 65,244.94

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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.