Home / 74,726.16-103,115.88-42,888.30

Finding the Fourth Proportional to 74,726.16, 103,115.88 and 42,888.30

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Solution

The fourth proportional to 74,726.16, 103,115.88 and 42,888.30 is: 59,182.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,726.16 : 103,115.88 = 42,888.30 : x
  2. Step 2: Convert to fraction form
    74,726.16/103,115.88 = 42,888.30/x
  3. Step 3: Cross multiply
    74,726.16x = 103,115.88 × 42,888.30
  4. Step 4: Simplify right side
    74,726.16x = 4,422,464,796.20
  5. Step 5: Solve for x
    x = 4,422,464,796.20/74,726.16
  6. Step 6: Final answer
    x = 59,182.28

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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.