Home / 51,148.46-70,587.06-28,487.45

Finding the Fourth Proportional to 51,148.46, 70,587.06 and 28,487.45

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Solution

The fourth proportional to 51,148.46, 70,587.06 and 28,487.45 is: 39,313.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,148.46 : 70,587.06 = 28,487.45 : x
  2. Step 2: Convert to fraction form
    51,148.46/70,587.06 = 28,487.45/x
  3. Step 3: Cross multiply
    51,148.46x = 70,587.06 × 28,487.45
  4. Step 4: Simplify right side
    51,148.46x = 2,010,845,518.86
  5. Step 5: Solve for x
    x = 2,010,845,518.86/51,148.46
  6. Step 6: Final answer
    x = 39,313.90

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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.