Home / 56,980.04-78,637.04-31,488.64

Finding the Fourth Proportional to 56,980.04, 78,637.04 and 31,488.64

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Solution

The fourth proportional to 56,980.04, 78,637.04 and 31,488.64 is: 43,456.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,980.04 : 78,637.04 = 31,488.64 : x
  2. Step 2: Convert to fraction form
    56,980.04/78,637.04 = 31,488.64/x
  3. Step 3: Cross multiply
    56,980.04x = 78,637.04 × 31,488.64
  4. Step 4: Simplify right side
    56,980.04x = 2,476,173,443.23
  5. Step 5: Solve for x
    x = 2,476,173,443.23/56,980.04
  6. Step 6: Final answer
    x = 43,456.86

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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.