Home / 55,788.16-76,988.08-31,913.36

Finding the Fourth Proportional to 55,788.16, 76,988.08 and 31,913.36

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Solution

The fourth proportional to 55,788.16, 76,988.08 and 31,913.36 is: 44,040.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,788.16 : 76,988.08 = 31,913.36 : x
  2. Step 2: Convert to fraction form
    55,788.16/76,988.08 = 31,913.36/x
  3. Step 3: Cross multiply
    55,788.16x = 76,988.08 × 31,913.36
  4. Step 4: Simplify right side
    55,788.16x = 2,456,948,312.75
  5. Step 5: Solve for x
    x = 2,456,948,312.75/55,788.16
  6. Step 6: Final answer
    x = 44,040.68

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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.