Home / 56,398.40-77,826.17-30,904.46

Finding the Fourth Proportional to 56,398.40, 77,826.17 and 30,904.46

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Solution

The fourth proportional to 56,398.40, 77,826.17 and 30,904.46 is: 42,646.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,398.40 : 77,826.17 = 30,904.46 : x
  2. Step 2: Convert to fraction form
    56,398.40/77,826.17 = 30,904.46/x
  3. Step 3: Cross multiply
    56,398.40x = 77,826.17 × 30,904.46
  4. Step 4: Simplify right side
    56,398.40x = 2,405,175,214.07
  5. Step 5: Solve for x
    x = 2,405,175,214.07/56,398.40
  6. Step 6: Final answer
    x = 42,646.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.