Home / 69,526.78-103,395.70-67,312.44

Finding the Fourth Proportional to 69,526.78, 103,395.70 and 67,312.44

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Solution

The fourth proportional to 69,526.78, 103,395.70 and 67,312.44 is: 100,102.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,526.78 : 103,395.70 = 67,312.44 : x
  2. Step 2: Convert to fraction form
    69,526.78/103,395.70 = 67,312.44/x
  3. Step 3: Cross multiply
    69,526.78x = 103,395.70 × 67,312.44
  4. Step 4: Simplify right side
    69,526.78x = 6,959,816,852.51
  5. Step 5: Solve for x
    x = 6,959,816,852.51/69,526.78
  6. Step 6: Final answer
    x = 100,102.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.