Home / 88,171.37-121,676.45-47,885.13

Finding the Fourth Proportional to 88,171.37, 121,676.45 and 47,885.13

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Solution

The fourth proportional to 88,171.37, 121,676.45 and 47,885.13 is: 66,081.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,171.37 : 121,676.45 = 47,885.13 : x
  2. Step 2: Convert to fraction form
    88,171.37/121,676.45 = 47,885.13/x
  3. Step 3: Cross multiply
    88,171.37x = 121,676.45 × 47,885.13
  4. Step 4: Simplify right side
    88,171.37x = 5,826,492,386.76
  5. Step 5: Solve for x
    x = 5,826,492,386.76/88,171.37
  6. Step 6: Final answer
    x = 66,081.46

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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.