Home / 86,775.63-119,715.04-56,549.94

Finding the Fourth Proportional to 86,775.63, 119,715.04 and 56,549.94

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Solution

The fourth proportional to 86,775.63, 119,715.04 and 56,549.94 is: 78,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,775.63 : 119,715.04 = 56,549.94 : x
  2. Step 2: Convert to fraction form
    86,775.63/119,715.04 = 56,549.94/x
  3. Step 3: Cross multiply
    86,775.63x = 119,715.04 × 56,549.94
  4. Step 4: Simplify right side
    86,775.63x = 6,769,878,620.12
  5. Step 5: Solve for x
    x = 6,769,878,620.12/86,775.63
  6. Step 6: Final answer
    x = 78,015.90

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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.