Home / 74,685.34-103,064.56-40,694.28

Finding the Fourth Proportional to 74,685.34, 103,064.56 and 40,694.28

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Solution

The fourth proportional to 74,685.34, 103,064.56 and 40,694.28 is: 56,157.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,685.34 : 103,064.56 = 40,694.28 : x
  2. Step 2: Convert to fraction form
    74,685.34/103,064.56 = 40,694.28/x
  3. Step 3: Cross multiply
    74,685.34x = 103,064.56 × 40,694.28
  4. Step 4: Simplify right side
    74,685.34x = 4,194,138,062.72
  5. Step 5: Solve for x
    x = 4,194,138,062.72/74,685.34
  6. Step 6: Final answer
    x = 56,157.45

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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.