Home / 68,088-93,961.44-56,107.20

Finding the Fourth Proportional to 68,088, 93,961.44 and 56,107.20

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Solution

The fourth proportional to 68,088, 93,961.44 and 56,107.20 is: 77,427.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,088 : 93,961.44 = 56,107.20 : x
  2. Step 2: Convert to fraction form
    68,088/93,961.44 = 56,107.20/x
  3. Step 3: Cross multiply
    68,088x = 93,961.44 × 56,107.20
  4. Step 4: Simplify right side
    68,088x = 5,271,913,306.37
  5. Step 5: Solve for x
    x = 5,271,913,306.37/68,088
  6. Step 6: Final answer
    x = 77,427.94

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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.