Home / 51,430.98-70,968.69-28,771.14

Finding the Fourth Proportional to 51,430.98, 70,968.69 and 28,771.14

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Solution

The fourth proportional to 51,430.98, 70,968.69 and 28,771.14 is: 39,700.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,430.98 : 70,968.69 = 28,771.14 : x
  2. Step 2: Convert to fraction form
    51,430.98/70,968.69 = 28,771.14/x
  3. Step 3: Cross multiply
    51,430.98x = 70,968.69 × 28,771.14
  4. Step 4: Simplify right side
    51,430.98x = 2,041,850,115.61
  5. Step 5: Solve for x
    x = 2,041,850,115.61/51,430.98
  6. Step 6: Final answer
    x = 39,700.78

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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.