Home / 42,752.21-64,071.81-30,945.44

Finding the Fourth Proportional to 42,752.21, 64,071.81 and 30,945.44

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Solution

The fourth proportional to 42,752.21, 64,071.81 and 30,945.44 is: 46,377.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,752.21 : 64,071.81 = 30,945.44 : x
  2. Step 2: Convert to fraction form
    42,752.21/64,071.81 = 30,945.44/x
  3. Step 3: Cross multiply
    42,752.21x = 64,071.81 × 30,945.44
  4. Step 4: Simplify right side
    42,752.21x = 1,982,730,512.23
  5. Step 5: Solve for x
    x = 1,982,730,512.23/42,752.21
  6. Step 6: Final answer
    x = 46,377.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.