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Finding the Fourth Proportional to 70,145.60, 105,283.20 and 35,110.40

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Solution

The fourth proportional to 70,145.60, 105,283.20 and 35,110.40 is: 52,698.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,145.60 : 105,283.20 = 35,110.40 : x
  2. Step 2: Convert to fraction form
    70,145.60/105,283.20 = 35,110.40/x
  3. Step 3: Cross multiply
    70,145.60x = 105,283.20 × 35,110.40
  4. Step 4: Simplify right side
    70,145.60x = 3,696,535,265.28
  5. Step 5: Solve for x
    x = 3,696,535,265.28/70,145.60
  6. Step 6: Final answer
    x = 52,698.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.