Home / 55,358.04-76,395.80-31,488.16

Finding the Fourth Proportional to 55,358.04, 76,395.80 and 31,488.16

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Solution

The fourth proportional to 55,358.04, 76,395.80 and 31,488.16 is: 43,454.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,358.04 : 76,395.80 = 31,488.16 : x
  2. Step 2: Convert to fraction form
    55,358.04/76,395.80 = 31,488.16/x
  3. Step 3: Cross multiply
    55,358.04x = 76,395.80 × 31,488.16
  4. Step 4: Simplify right side
    55,358.04x = 2,405,563,173.73
  5. Step 5: Solve for x
    x = 2,405,563,173.73/55,358.04
  6. Step 6: Final answer
    x = 43,454.63

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1.5x scale

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.