Home / 86,070.60-129,105.23-50,985

Finding the Fourth Proportional to 86,070.60, 129,105.23 and 50,985

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Solution

The fourth proportional to 86,070.60, 129,105.23 and 50,985 is: 76,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,070.60 : 129,105.23 = 50,985 : x
  2. Step 2: Convert to fraction form
    86,070.60/129,105.23 = 50,985/x
  3. Step 3: Cross multiply
    86,070.60x = 129,105.23 × 50,985
  4. Step 4: Simplify right side
    86,070.60x = 6,582,429,896.63
  5. Step 5: Solve for x
    x = 6,582,429,896.63/86,070.60
  6. Step 6: Final answer
    x = 76,477.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.