Home / 74,698.19-103,082.56-40,708.16

Finding the Fourth Proportional to 74,698.19, 103,082.56 and 40,708.16

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Solution

The fourth proportional to 74,698.19, 103,082.56 and 40,708.16 is: 56,176.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,698.19 : 103,082.56 = 40,708.16 : x
  2. Step 2: Convert to fraction form
    74,698.19/103,082.56 = 40,708.16/x
  3. Step 3: Cross multiply
    74,698.19x = 103,082.56 × 40,708.16
  4. Step 4: Simplify right side
    74,698.19x = 4,196,300,728.51
  5. Step 5: Solve for x
    x = 4,196,300,728.51/74,698.19
  6. Step 6: Final answer
    x = 56,176.74

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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.