Home / 85,215.08-117,594.12-53,401.52

Finding the Fourth Proportional to 85,215.08, 117,594.12 and 53,401.52

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Solution

The fourth proportional to 85,215.08, 117,594.12 and 53,401.52 is: 73,692.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,215.08 : 117,594.12 = 53,401.52 : x
  2. Step 2: Convert to fraction form
    85,215.08/117,594.12 = 53,401.52/x
  3. Step 3: Cross multiply
    85,215.08x = 117,594.12 × 53,401.52
  4. Step 4: Simplify right side
    85,215.08x = 6,279,704,751.06
  5. Step 5: Solve for x
    x = 6,279,704,751.06/85,215.08
  6. Step 6: Final answer
    x = 73,692.41

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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.