Home / 68,120.48-94,005.36-38,312.48

Finding the Fourth Proportional to 68,120.48, 94,005.36 and 38,312.48

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Solution

The fourth proportional to 68,120.48, 94,005.36 and 38,312.48 is: 52,870.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,120.48 : 94,005.36 = 38,312.48 : x
  2. Step 2: Convert to fraction form
    68,120.48/94,005.36 = 38,312.48/x
  3. Step 3: Cross multiply
    68,120.48x = 94,005.36 × 38,312.48
  4. Step 4: Simplify right side
    68,120.48x = 3,601,578,474.89
  5. Step 5: Solve for x
    x = 3,601,578,474.89/68,120.48
  6. Step 6: Final answer
    x = 52,870.71

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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.