Home / 74,987.19-103,480.56-40,995.93

Finding the Fourth Proportional to 74,987.19, 103,480.56 and 40,995.93

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Solution

The fourth proportional to 74,987.19, 103,480.56 and 40,995.93 is: 56,573.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,987.19 : 103,480.56 = 40,995.93 : x
  2. Step 2: Convert to fraction form
    74,987.19/103,480.56 = 40,995.93/x
  3. Step 3: Cross multiply
    74,987.19x = 103,480.56 × 40,995.93
  4. Step 4: Simplify right side
    74,987.19x = 4,242,281,794.12
  5. Step 5: Solve for x
    x = 4,242,281,794.12/74,987.19
  6. Step 6: Final answer
    x = 56,573.42

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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.