Home / 85,187.76-117,559.29-51,196.77

Finding the Fourth Proportional to 85,187.76, 117,559.29 and 51,196.77

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Solution

The fourth proportional to 85,187.76, 117,559.29 and 51,196.77 is: 70,651.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,187.76 : 117,559.29 = 51,196.77 : x
  2. Step 2: Convert to fraction form
    85,187.76/117,559.29 = 51,196.77/x
  3. Step 3: Cross multiply
    85,187.76x = 117,559.29 × 51,196.77
  4. Step 4: Simplify right side
    85,187.76x = 6,018,655,931.49
  5. Step 5: Solve for x
    x = 6,018,655,931.49/85,187.76
  6. Step 6: Final answer
    x = 70,651.65

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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.