Home / 55,303.16-76,309.49-31,104.05

Finding the Fourth Proportional to 55,303.16, 76,309.49 and 31,104.05

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Solution

The fourth proportional to 55,303.16, 76,309.49 and 31,104.05 is: 42,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,303.16 : 76,309.49 = 31,104.05 : x
  2. Step 2: Convert to fraction form
    55,303.16/76,309.49 = 31,104.05/x
  3. Step 3: Cross multiply
    55,303.16x = 76,309.49 × 31,104.05
  4. Step 4: Simplify right side
    55,303.16x = 2,373,534,192.43
  5. Step 5: Solve for x
    x = 2,373,534,192.43/55,303.16
  6. Step 6: Final answer
    x = 42,918.60

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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.