Home / 56,906.08-78,530.41-31,412.46

Finding the Fourth Proportional to 56,906.08, 78,530.41 and 31,412.46

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Solution

The fourth proportional to 56,906.08, 78,530.41 and 31,412.46 is: 43,349.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,906.08 : 78,530.41 = 31,412.46 : x
  2. Step 2: Convert to fraction form
    56,906.08/78,530.41 = 31,412.46/x
  3. Step 3: Cross multiply
    56,906.08x = 78,530.41 × 31,412.46
  4. Step 4: Simplify right side
    56,906.08x = 2,466,833,362.91
  5. Step 5: Solve for x
    x = 2,466,833,362.91/56,906.08
  6. Step 6: Final answer
    x = 43,349.21

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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.