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Finding the Fourth Proportional to 51,041.66, 70,440.66 and 28,385.72

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Solution

The fourth proportional to 51,041.66, 70,440.66 and 28,385.72 is: 39,174.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,041.66 : 70,440.66 = 28,385.72 : x
  2. Step 2: Convert to fraction form
    51,041.66/70,440.66 = 28,385.72/x
  3. Step 3: Cross multiply
    51,041.66x = 70,440.66 × 28,385.72
  4. Step 4: Simplify right side
    51,041.66x = 1,999,508,851.38
  5. Step 5: Solve for x
    x = 1,999,508,851.38/51,041.66
  6. Step 6: Final answer
    x = 39,174.06

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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.