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Finding the Fourth Proportional to 74,039.98, 110,478.44 and 69,521.08

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Solution

The fourth proportional to 74,039.98, 110,478.44 and 69,521.08 is: 103,735.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,039.98 : 110,478.44 = 69,521.08 : x
  2. Step 2: Convert to fraction form
    74,039.98/110,478.44 = 69,521.08/x
  3. Step 3: Cross multiply
    74,039.98x = 110,478.44 × 69,521.08
  4. Step 4: Simplify right side
    74,039.98x = 7,680,580,465.52
  5. Step 5: Solve for x
    x = 7,680,580,465.52/74,039.98
  6. Step 6: Final answer
    x = 103,735.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.