Home / 70,009.11-96,610.73-38,178.63

Finding the Fourth Proportional to 70,009.11, 96,610.73 and 38,178.63

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Solution

The fourth proportional to 70,009.11, 96,610.73 and 38,178.63 is: 52,685.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,009.11 : 96,610.73 = 38,178.63 : x
  2. Step 2: Convert to fraction form
    70,009.11/96,610.73 = 38,178.63/x
  3. Step 3: Cross multiply
    70,009.11x = 96,610.73 × 38,178.63
  4. Step 4: Simplify right side
    70,009.11x = 3,688,465,123.81
  5. Step 5: Solve for x
    x = 3,688,465,123.81/70,009.11
  6. Step 6: Final answer
    x = 52,685.50

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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.