Home / 56,238.96-77,611.32-31,089.36

Finding the Fourth Proportional to 56,238.96, 77,611.32 and 31,089.36

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Solution

The fourth proportional to 56,238.96, 77,611.32 and 31,089.36 is: 42,904.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,238.96 : 77,611.32 = 31,089.36 : x
  2. Step 2: Convert to fraction form
    56,238.96/77,611.32 = 31,089.36/x
  3. Step 3: Cross multiply
    56,238.96x = 77,611.32 × 31,089.36
  4. Step 4: Simplify right side
    56,238.96x = 2,412,886,267.56
  5. Step 5: Solve for x
    x = 2,412,886,267.56/56,238.96
  6. Step 6: Final answer
    x = 42,904.18

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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.