Home / 56,918.84-78,547.62-31,426.79

Finding the Fourth Proportional to 56,918.84, 78,547.62 and 31,426.79

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Solution

The fourth proportional to 56,918.84, 78,547.62 and 31,426.79 is: 43,368.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,918.84 : 78,547.62 = 31,426.79 : x
  2. Step 2: Convert to fraction form
    56,918.84/78,547.62 = 31,426.79/x
  3. Step 3: Cross multiply
    56,918.84x = 78,547.62 × 31,426.79
  4. Step 4: Simplify right side
    56,918.84x = 2,468,499,283.85
  5. Step 5: Solve for x
    x = 2,468,499,283.85/56,918.84
  6. Step 6: Final answer
    x = 43,368.76

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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.