Home / 42,678.26-64,045.95-17,718.32

Finding the Fourth Proportional to 42,678.26, 64,045.95 and 17,718.32

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Solution

The fourth proportional to 42,678.26, 64,045.95 and 17,718.32 is: 26,589.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,678.26 : 64,045.95 = 17,718.32 : x
  2. Step 2: Convert to fraction form
    42,678.26/64,045.95 = 17,718.32/x
  3. Step 3: Cross multiply
    42,678.26x = 64,045.95 × 17,718.32
  4. Step 4: Simplify right side
    42,678.26x = 1,134,786,730.48
  5. Step 5: Solve for x
    x = 1,134,786,730.48/42,678.26
  6. Step 6: Final answer
    x = 26,589.34

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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.