Home / 55,259.16-76,257.81-31,386.03

Finding the Fourth Proportional to 55,259.16, 76,257.81 and 31,386.03

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Solution

The fourth proportional to 55,259.16, 76,257.81 and 31,386.03 is: 43,312.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,259.16 : 76,257.81 = 31,386.03 : x
  2. Step 2: Convert to fraction form
    55,259.16/76,257.81 = 31,386.03/x
  3. Step 3: Cross multiply
    55,259.16x = 76,257.81 × 31,386.03
  4. Step 4: Simplify right side
    55,259.16x = 2,393,429,912.39
  5. Step 5: Solve for x
    x = 2,393,429,912.39/55,259.16
  6. Step 6: Final answer
    x = 43,312.82

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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.