Home / 90,933.28-125,444.45-70,651.35

Finding the Fourth Proportional to 90,933.28, 125,444.45 and 70,651.35

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Solution

The fourth proportional to 90,933.28, 125,444.45 and 70,651.35 is: 97,465.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,933.28 : 125,444.45 = 70,651.35 : x
  2. Step 2: Convert to fraction form
    90,933.28/125,444.45 = 70,651.35/x
  3. Step 3: Cross multiply
    90,933.28x = 125,444.45 × 70,651.35
  4. Step 4: Simplify right side
    90,933.28x = 8,862,819,919.14
  5. Step 5: Solve for x
    x = 8,862,819,919.14/90,933.28
  6. Step 6: Final answer
    x = 97,465.09

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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.