Home / 51,120.68-70,545.16-28,459.67

Finding the Fourth Proportional to 51,120.68, 70,545.16 and 28,459.67

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Solution

The fourth proportional to 51,120.68, 70,545.16 and 28,459.67 is: 39,273.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,120.68 : 70,545.16 = 28,459.67 : x
  2. Step 2: Convert to fraction form
    51,120.68/70,545.16 = 28,459.67/x
  3. Step 3: Cross multiply
    51,120.68x = 70,545.16 × 28,459.67
  4. Step 4: Simplify right side
    51,120.68x = 2,007,691,973.32
  5. Step 5: Solve for x
    x = 2,007,691,973.32/51,120.68
  6. Step 6: Final answer
    x = 39,273.58

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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.