Home / 70,783.18-97,685.14-38,959.10

Finding the Fourth Proportional to 70,783.18, 97,685.14 and 38,959.10

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Solution

The fourth proportional to 70,783.18, 97,685.14 and 38,959.10 is: 53,765.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,783.18 : 97,685.14 = 38,959.10 : x
  2. Step 2: Convert to fraction form
    70,783.18/97,685.14 = 38,959.10/x
  3. Step 3: Cross multiply
    70,783.18x = 97,685.14 × 38,959.10
  4. Step 4: Simplify right side
    70,783.18x = 3,805,725,137.77
  5. Step 5: Solve for x
    x = 3,805,725,137.77/70,783.18
  6. Step 6: Final answer
    x = 53,765.95

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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.