Home / 42,695.91-64,054.26-19,316.07

Finding the Fourth Proportional to 42,695.91, 64,054.26 and 19,316.07

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Solution

The fourth proportional to 42,695.91, 64,054.26 and 19,316.07 is: 28,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,695.91 : 64,054.26 = 19,316.07 : x
  2. Step 2: Convert to fraction form
    42,695.91/64,054.26 = 19,316.07/x
  3. Step 3: Cross multiply
    42,695.91x = 64,054.26 × 19,316.07
  4. Step 4: Simplify right side
    42,695.91x = 1,237,276,569.96
  5. Step 5: Solve for x
    x = 1,237,276,569.96/42,695.91
  6. Step 6: Final answer
    x = 28,978.81

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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.