Home / 86,371.42-129,557.13-49,409.50

Finding the Fourth Proportional to 86,371.42, 129,557.13 and 49,409.50

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Solution

The fourth proportional to 86,371.42, 129,557.13 and 49,409.50 is: 74,114.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,371.42 : 129,557.13 = 49,409.50 : x
  2. Step 2: Convert to fraction form
    86,371.42/129,557.13 = 49,409.50/x
  3. Step 3: Cross multiply
    86,371.42x = 129,557.13 × 49,409.50
  4. Step 4: Simplify right side
    86,371.42x = 6,401,353,014.74
  5. Step 5: Solve for x
    x = 6,401,353,014.74/86,371.42
  6. Step 6: Final answer
    x = 74,114.25

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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.