Home / 86,399.01-119,205.79-56,228.74

Finding the Fourth Proportional to 86,399.01, 119,205.79 and 56,228.74

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Solution

The fourth proportional to 86,399.01, 119,205.79 and 56,228.74 is: 77,579.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,399.01 : 119,205.79 = 56,228.74 : x
  2. Step 2: Convert to fraction form
    86,399.01/119,205.79 = 56,228.74/x
  3. Step 3: Cross multiply
    86,399.01x = 119,205.79 × 56,228.74
  4. Step 4: Simplify right side
    86,399.01x = 6,702,791,250.10
  5. Step 5: Solve for x
    x = 6,702,791,250.10/86,399.01
  6. Step 6: Final answer
    x = 77,579.49

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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.