Home / 86,187.22-129,248.83-30,012.91

Finding the Fourth Proportional to 86,187.22, 129,248.83 and 30,012.91

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Solution

The fourth proportional to 86,187.22, 129,248.83 and 30,012.91 is: 45,008.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,187.22 : 129,248.83 = 30,012.91 : x
  2. Step 2: Convert to fraction form
    86,187.22/129,248.83 = 30,012.91/x
  3. Step 3: Cross multiply
    86,187.22x = 129,248.83 × 30,012.91
  4. Step 4: Simplify right side
    86,187.22x = 3,879,133,502.40
  5. Step 5: Solve for x
    x = 3,879,133,502.40/86,187.22
  6. Step 6: Final answer
    x = 45,008.22

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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.