Home / 85,278.29-117,681.32-47,037.78

Finding the Fourth Proportional to 85,278.29, 117,681.32 and 47,037.78

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Solution

The fourth proportional to 85,278.29, 117,681.32 and 47,037.78 is: 64,910.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,278.29 : 117,681.32 = 47,037.78 : x
  2. Step 2: Convert to fraction form
    85,278.29/117,681.32 = 47,037.78/x
  3. Step 3: Cross multiply
    85,278.29x = 117,681.32 × 47,037.78
  4. Step 4: Simplify right side
    85,278.29x = 5,535,468,157.86
  5. Step 5: Solve for x
    x = 5,535,468,157.86/85,278.29
  6. Step 6: Final answer
    x = 64,910.64

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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.