Home / 56,507.25-78,010.86-38,628.53

Finding the Fourth Proportional to 56,507.25, 78,010.86 and 38,628.53

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Solution

The fourth proportional to 56,507.25, 78,010.86 and 38,628.53 is: 53,328.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,507.25 : 78,010.86 = 38,628.53 : x
  2. Step 2: Convert to fraction form
    56,507.25/78,010.86 = 38,628.53/x
  3. Step 3: Cross multiply
    56,507.25x = 78,010.86 × 38,628.53
  4. Step 4: Simplify right side
    56,507.25x = 3,013,444,893.18
  5. Step 5: Solve for x
    x = 3,013,444,893.18/56,507.25
  6. Step 6: Final answer
    x = 53,328.46

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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.