Home / 42,319.54-63,480.62-12,737.59

Finding the Fourth Proportional to 42,319.54, 63,480.62 and 12,737.59

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Solution

The fourth proportional to 42,319.54, 63,480.62 and 12,737.59 is: 19,106.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,319.54 : 63,480.62 = 12,737.59 : x
  2. Step 2: Convert to fraction form
    42,319.54/63,480.62 = 12,737.59/x
  3. Step 3: Cross multiply
    42,319.54x = 63,480.62 × 12,737.59
  4. Step 4: Simplify right side
    42,319.54x = 808,590,110.51
  5. Step 5: Solve for x
    x = 808,590,110.51/42,319.54
  6. Step 6: Final answer
    x = 19,106.78

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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.