Home / 86,859.06-130,307.72-49,436.75

Finding the Fourth Proportional to 86,859.06, 130,307.72 and 49,436.75

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Solution

The fourth proportional to 86,859.06, 130,307.72 and 49,436.75 is: 74,166.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,859.06 : 130,307.72 = 49,436.75 : x
  2. Step 2: Convert to fraction form
    86,859.06/130,307.72 = 49,436.75/x
  3. Step 3: Cross multiply
    86,859.06x = 130,307.72 × 49,436.75
  4. Step 4: Simplify right side
    86,859.06x = 6,441,989,277.99
  5. Step 5: Solve for x
    x = 6,441,989,277.99/86,859.06
  6. Step 6: Final answer
    x = 74,166.00

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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.