Home / 85,013.10-117,313.38-47,284.92

Finding the Fourth Proportional to 85,013.10, 117,313.38 and 47,284.92

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Solution

The fourth proportional to 85,013.10, 117,313.38 and 47,284.92 is: 65,250.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,013.10 : 117,313.38 = 47,284.92 : x
  2. Step 2: Convert to fraction form
    85,013.10/117,313.38 = 47,284.92/x
  3. Step 3: Cross multiply
    85,013.10x = 117,313.38 × 47,284.92
  4. Step 4: Simplify right side
    85,013.10x = 5,547,153,788.23
  5. Step 5: Solve for x
    x = 5,547,153,788.23/85,013.10
  6. Step 6: Final answer
    x = 65,250.58

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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.