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Finding the Fourth Proportional to 51,043.77, 70,434.77 and 30,624.75

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Solution

The fourth proportional to 51,043.77, 70,434.77 and 30,624.75 is: 42,258.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,043.77 : 70,434.77 = 30,624.75 : x
  2. Step 2: Convert to fraction form
    51,043.77/70,434.77 = 30,624.75/x
  3. Step 3: Cross multiply
    51,043.77x = 70,434.77 × 30,624.75
  4. Step 4: Simplify right side
    51,043.77x = 2,157,047,069.43
  5. Step 5: Solve for x
    x = 2,157,047,069.43/51,043.77
  6. Step 6: Final answer
    x = 42,258.77

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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.