Home / 56,243.51-77,618.10-30,751.56

Finding the Fourth Proportional to 56,243.51, 77,618.10 and 30,751.56

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Solution

The fourth proportional to 56,243.51, 77,618.10 and 30,751.56 is: 42,438.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,243.51 : 77,618.10 = 30,751.56 : x
  2. Step 2: Convert to fraction form
    56,243.51/77,618.10 = 30,751.56/x
  3. Step 3: Cross multiply
    56,243.51x = 77,618.10 × 30,751.56
  4. Step 4: Simplify right side
    56,243.51x = 2,386,877,659.24
  5. Step 5: Solve for x
    x = 2,386,877,659.24/56,243.51
  6. Step 6: Final answer
    x = 42,438.28

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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.