Home / 51,267.20-70,729.81-30,038.72

Finding the Fourth Proportional to 51,267.20, 70,729.81 and 30,038.72

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Solution

The fourth proportional to 51,267.20, 70,729.81 and 30,038.72 is: 41,442.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,267.20 : 70,729.81 = 30,038.72 : x
  2. Step 2: Convert to fraction form
    51,267.20/70,729.81 = 30,038.72/x
  3. Step 3: Cross multiply
    51,267.20x = 70,729.81 × 30,038.72
  4. Step 4: Simplify right side
    51,267.20x = 2,124,632,529.50
  5. Step 5: Solve for x
    x = 2,124,632,529.50/51,267.20
  6. Step 6: Final answer
    x = 41,442.34

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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.