Home / 86,587.04-129,894.84-30,412.52

Finding the Fourth Proportional to 86,587.04, 129,894.84 and 30,412.52

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Solution

The fourth proportional to 86,587.04, 129,894.84 and 30,412.52 is: 45,623.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,587.04 : 129,894.84 = 30,412.52 : x
  2. Step 2: Convert to fraction form
    86,587.04/129,894.84 = 30,412.52/x
  3. Step 3: Cross multiply
    86,587.04x = 129,894.84 × 30,412.52
  4. Step 4: Simplify right side
    86,587.04x = 3,950,429,419.40
  5. Step 5: Solve for x
    x = 3,950,429,419.40/86,587.04
  6. Step 6: Final answer
    x = 45,623.80

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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.