Home / 86,981.94-120,035.07-49,263.48

Finding the Fourth Proportional to 86,981.94, 120,035.07 and 49,263.48

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Solution

The fourth proportional to 86,981.94, 120,035.07 and 49,263.48 is: 67,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,981.94 : 120,035.07 = 49,263.48 : x
  2. Step 2: Convert to fraction form
    86,981.94/120,035.07 = 49,263.48/x
  3. Step 3: Cross multiply
    86,981.94x = 120,035.07 × 49,263.48
  4. Step 4: Simplify right side
    86,981.94x = 5,913,345,270.24
  5. Step 5: Solve for x
    x = 5,913,345,270.24/86,981.94
  6. Step 6: Final answer
    x = 67,983.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.