Home / 85,501.44-117,991.74-47,775.72

Finding the Fourth Proportional to 85,501.44, 117,991.74 and 47,775.72

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Solution

The fourth proportional to 85,501.44, 117,991.74 and 47,775.72 is: 65,930.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,501.44 : 117,991.74 = 47,775.72 : x
  2. Step 2: Convert to fraction form
    85,501.44/117,991.74 = 47,775.72/x
  3. Step 3: Cross multiply
    85,501.44x = 117,991.74 × 47,775.72
  4. Step 4: Simplify right side
    85,501.44x = 5,637,140,332.55
  5. Step 5: Solve for x
    x = 5,637,140,332.55/85,501.44
  6. Step 6: Final answer
    x = 65,930.36

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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.