Home / 51,430.65-70,970.96-28,765.72

Finding the Fourth Proportional to 51,430.65, 70,970.96 and 28,765.72

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Solution

The fourth proportional to 51,430.65, 70,970.96 and 28,765.72 is: 39,694.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,430.65 : 70,970.96 = 28,765.72 : x
  2. Step 2: Convert to fraction form
    51,430.65/70,970.96 = 28,765.72/x
  3. Step 3: Cross multiply
    51,430.65x = 70,970.96 × 28,765.72
  4. Step 4: Simplify right side
    51,430.65x = 2,041,530,763.49
  5. Step 5: Solve for x
    x = 2,041,530,763.49/51,430.65
  6. Step 6: Final answer
    x = 39,694.83

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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.