Home / 81,319.03-122,118.13-49,913.50

Finding the Fourth Proportional to 81,319.03, 122,118.13 and 49,913.50

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Solution

The fourth proportional to 81,319.03, 122,118.13 and 49,913.50 is: 74,955.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,319.03 : 122,118.13 = 49,913.50 : x
  2. Step 2: Convert to fraction form
    81,319.03/122,118.13 = 49,913.50/x
  3. Step 3: Cross multiply
    81,319.03x = 122,118.13 × 49,913.50
  4. Step 4: Simplify right side
    81,319.03x = 6,095,343,032.19
  5. Step 5: Solve for x
    x = 6,095,343,032.19/81,319.03
  6. Step 6: Final answer
    x = 74,955.93

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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.