Home / 86,347.80-129,551.11-52,681.22

Finding the Fourth Proportional to 86,347.80, 129,551.11 and 52,681.22

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Solution

The fourth proportional to 86,347.80, 129,551.11 and 52,681.22 is: 79,039.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,347.80 : 129,551.11 = 52,681.22 : x
  2. Step 2: Convert to fraction form
    86,347.80/129,551.11 = 52,681.22/x
  3. Step 3: Cross multiply
    86,347.80x = 129,551.11 × 52,681.22
  4. Step 4: Simplify right side
    86,347.80x = 6,824,910,527.15
  5. Step 5: Solve for x
    x = 6,824,910,527.15/86,347.80
  6. Step 6: Final answer
    x = 79,039.77

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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.