Home / 56,764.08-78,238.44-38,828.16

Finding the Fourth Proportional to 56,764.08, 78,238.44 and 38,828.16

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Solution

The fourth proportional to 56,764.08, 78,238.44 and 38,828.16 is: 53,517.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,764.08 : 78,238.44 = 38,828.16 : x
  2. Step 2: Convert to fraction form
    56,764.08/78,238.44 = 38,828.16/x
  3. Step 3: Cross multiply
    56,764.08x = 78,238.44 × 38,828.16
  4. Step 4: Simplify right side
    56,764.08x = 3,037,854,666.47
  5. Step 5: Solve for x
    x = 3,037,854,666.47/56,764.08
  6. Step 6: Final answer
    x = 53,517.20

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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.