Home / 84,737.21-127,106.55-21,557.39

Finding the Fourth Proportional to 84,737.21, 127,106.55 and 21,557.39

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Solution

The fourth proportional to 84,737.21, 127,106.55 and 21,557.39 is: 32,336.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,737.21 : 127,106.55 = 21,557.39 : x
  2. Step 2: Convert to fraction form
    84,737.21/127,106.55 = 21,557.39/x
  3. Step 3: Cross multiply
    84,737.21x = 127,106.55 × 21,557.39
  4. Step 4: Simplify right side
    84,737.21x = 2,740,084,834.37
  5. Step 5: Solve for x
    x = 2,740,084,834.37/84,737.21
  6. Step 6: Final answer
    x = 32,336.27

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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.