Home / 74,718.56-103,109.28-42,888.08

Finding the Fourth Proportional to 74,718.56, 103,109.28 and 42,888.08

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Solution

The fourth proportional to 74,718.56, 103,109.28 and 42,888.08 is: 59,184.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,718.56 : 103,109.28 = 42,888.08 : x
  2. Step 2: Convert to fraction form
    74,718.56/103,109.28 = 42,888.08/x
  3. Step 3: Cross multiply
    74,718.56x = 103,109.28 × 42,888.08
  4. Step 4: Simplify right side
    74,718.56x = 4,422,159,049.38
  5. Step 5: Solve for x
    x = 4,422,159,049.38/74,718.56
  6. Step 6: Final answer
    x = 59,184.21

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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.