Home / 74,302.28-102,512.26-42,448.64

Finding the Fourth Proportional to 74,302.28, 102,512.26 and 42,448.64

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Solution

The fourth proportional to 74,302.28, 102,512.26 and 42,448.64 is: 58,564.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,302.28 : 102,512.26 = 42,448.64 : x
  2. Step 2: Convert to fraction form
    74,302.28/102,512.26 = 42,448.64/x
  3. Step 3: Cross multiply
    74,302.28x = 102,512.26 × 42,448.64
  4. Step 4: Simplify right side
    74,302.28x = 4,351,506,020.33
  5. Step 5: Solve for x
    x = 4,351,506,020.33/74,302.28
  6. Step 6: Final answer
    x = 58,564.91

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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.