Home / 56,102.42-77,328.92-39,728.63

Finding the Fourth Proportional to 56,102.42, 77,328.92 and 39,728.63

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Solution

The fourth proportional to 56,102.42, 77,328.92 and 39,728.63 is: 54,760.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,102.42 : 77,328.92 = 39,728.63 : x
  2. Step 2: Convert to fraction form
    56,102.42/77,328.92 = 39,728.63/x
  3. Step 3: Cross multiply
    56,102.42x = 77,328.92 × 39,728.63
  4. Step 4: Simplify right side
    56,102.42x = 3,072,172,045.66
  5. Step 5: Solve for x
    x = 3,072,172,045.66/56,102.42
  6. Step 6: Final answer
    x = 54,760.06

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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.