Home / 70,985.16-97,959.74-39,154.56

Finding the Fourth Proportional to 70,985.16, 97,959.74 and 39,154.56

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Solution

The fourth proportional to 70,985.16, 97,959.74 and 39,154.56 is: 54,033.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,985.16 : 97,959.74 = 39,154.56 : x
  2. Step 2: Convert to fraction form
    70,985.16/97,959.74 = 39,154.56/x
  3. Step 3: Cross multiply
    70,985.16x = 97,959.74 × 39,154.56
  4. Step 4: Simplify right side
    70,985.16x = 3,835,570,517.41
  5. Step 5: Solve for x
    x = 3,835,570,517.41/70,985.16
  6. Step 6: Final answer
    x = 54,033.41

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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.