Home / 68,345.16-94,316.19-38,128.68

Finding the Fourth Proportional to 68,345.16, 94,316.19 and 38,128.68

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Solution

The fourth proportional to 68,345.16, 94,316.19 and 38,128.68 is: 52,617.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,345.16 : 94,316.19 = 38,128.68 : x
  2. Step 2: Convert to fraction form
    68,345.16/94,316.19 = 38,128.68/x
  3. Step 3: Cross multiply
    68,345.16x = 94,316.19 × 38,128.68
  4. Step 4: Simplify right side
    68,345.16x = 3,596,151,827.33
  5. Step 5: Solve for x
    x = 3,596,151,827.33/68,345.16
  6. Step 6: Final answer
    x = 52,617.51

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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.