Home / 86,783.88-119,726.40-56,558.19

Finding the Fourth Proportional to 86,783.88, 119,726.40 and 56,558.19

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Solution

The fourth proportional to 86,783.88, 119,726.40 and 56,558.19 is: 78,027.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,783.88 : 119,726.40 = 56,558.19 : x
  2. Step 2: Convert to fraction form
    86,783.88/119,726.40 = 56,558.19/x
  3. Step 3: Cross multiply
    86,783.88x = 119,726.40 × 56,558.19
  4. Step 4: Simplify right side
    86,783.88x = 6,771,508,479.22
  5. Step 5: Solve for x
    x = 6,771,508,479.22/86,783.88
  6. Step 6: Final answer
    x = 78,027.26

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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.