Home / 70,990.25-97,958.98-39,159.15

Finding the Fourth Proportional to 70,990.25, 97,958.98 and 39,159.15

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Solution

The fourth proportional to 70,990.25, 97,958.98 and 39,159.15 is: 54,035.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,990.25 : 97,958.98 = 39,159.15 : x
  2. Step 2: Convert to fraction form
    70,990.25/97,958.98 = 39,159.15/x
  3. Step 3: Cross multiply
    70,990.25x = 97,958.98 × 39,159.15
  4. Step 4: Simplify right side
    70,990.25x = 3,835,989,880.53
  5. Step 5: Solve for x
    x = 3,835,989,880.53/70,990.25
  6. Step 6: Final answer
    x = 54,035.45

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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.