Home / 51,312.34-70,812.23-28,650.56

Finding the Fourth Proportional to 51,312.34, 70,812.23 and 28,650.56

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Solution

The fourth proportional to 51,312.34, 70,812.23 and 28,650.56 is: 39,538.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,312.34 : 70,812.23 = 28,650.56 : x
  2. Step 2: Convert to fraction form
    51,312.34/70,812.23 = 28,650.56/x
  3. Step 3: Cross multiply
    51,312.34x = 70,812.23 × 28,650.56
  4. Step 4: Simplify right side
    51,312.34x = 2,028,810,149.75
  5. Step 5: Solve for x
    x = 2,028,810,149.75/51,312.34
  6. Step 6: Final answer
    x = 39,538.45

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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.