Home / 42,733.12-64,088.16-19,336

Finding the Fourth Proportional to 42,733.12, 64,088.16 and 19,336

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Solution

The fourth proportional to 42,733.12, 64,088.16 and 19,336 is: 28,998.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,733.12 : 64,088.16 = 19,336 : x
  2. Step 2: Convert to fraction form
    42,733.12/64,088.16 = 19,336/x
  3. Step 3: Cross multiply
    42,733.12x = 64,088.16 × 19,336
  4. Step 4: Simplify right side
    42,733.12x = 1,239,208,661.76
  5. Step 5: Solve for x
    x = 1,239,208,661.76/42,733.12
  6. Step 6: Final answer
    x = 28,998.79

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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.