Home / 56,056.36-77,358.30-30,906.76

Finding the Fourth Proportional to 56,056.36, 77,358.30 and 30,906.76

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Solution

The fourth proportional to 56,056.36, 77,358.30 and 30,906.76 is: 42,651.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,056.36 : 77,358.30 = 30,906.76 : x
  2. Step 2: Convert to fraction form
    56,056.36/77,358.30 = 30,906.76/x
  3. Step 3: Cross multiply
    56,056.36x = 77,358.30 × 30,906.76
  4. Step 4: Simplify right side
    56,056.36x = 2,390,894,412.11
  5. Step 5: Solve for x
    x = 2,390,894,412.11/56,056.36
  6. Step 6: Final answer
    x = 42,651.62

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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.