Home / 75,221.63-103,817.28-48,009.46

Finding the Fourth Proportional to 75,221.63, 103,817.28 and 48,009.46

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Solution

The fourth proportional to 75,221.63, 103,817.28 and 48,009.46 is: 66,260.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,221.63 : 103,817.28 = 48,009.46 : x
  2. Step 2: Convert to fraction form
    75,221.63/103,817.28 = 48,009.46/x
  3. Step 3: Cross multiply
    75,221.63x = 103,817.28 × 48,009.46
  4. Step 4: Simplify right side
    75,221.63x = 4,984,210,792.34
  5. Step 5: Solve for x
    x = 4,984,210,792.34/75,221.63
  6. Step 6: Final answer
    x = 66,260.34

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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.