Home / 51,308.50-70,815.36-30,087.76

Finding the Fourth Proportional to 51,308.50, 70,815.36 and 30,087.76

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Solution

The fourth proportional to 51,308.50, 70,815.36 and 30,087.76 is: 41,526.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,308.50 : 70,815.36 = 30,087.76 : x
  2. Step 2: Convert to fraction form
    51,308.50/70,815.36 = 30,087.76/x
  3. Step 3: Cross multiply
    51,308.50x = 70,815.36 × 30,087.76
  4. Step 4: Simplify right side
    51,308.50x = 2,130,675,555.99
  5. Step 5: Solve for x
    x = 2,130,675,555.99/51,308.50
  6. Step 6: Final answer
    x = 41,526.76

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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.