Home / 86,740.39-119,734.77-56,533.06

Finding the Fourth Proportional to 86,740.39, 119,734.77 and 56,533.06

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Solution

The fourth proportional to 86,740.39, 119,734.77 and 56,533.06 is: 78,037.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,740.39 : 119,734.77 = 56,533.06 : x
  2. Step 2: Convert to fraction form
    86,740.39/119,734.77 = 56,533.06/x
  3. Step 3: Cross multiply
    86,740.39x = 119,734.77 × 56,533.06
  4. Step 4: Simplify right side
    86,740.39x = 6,768,972,936.50
  5. Step 5: Solve for x
    x = 6,768,972,936.50/86,740.39
  6. Step 6: Final answer
    x = 78,037.15

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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.