Home / 55,185.95-76,154.36-31,312.11

Finding the Fourth Proportional to 55,185.95, 76,154.36 and 31,312.11

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Solution

The fourth proportional to 55,185.95, 76,154.36 and 31,312.11 is: 43,209.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,185.95 : 76,154.36 = 31,312.11 : x
  2. Step 2: Convert to fraction form
    55,185.95/76,154.36 = 31,312.11/x
  3. Step 3: Cross multiply
    55,185.95x = 76,154.36 × 31,312.11
  4. Step 4: Simplify right side
    55,185.95x = 2,384,553,697.30
  5. Step 5: Solve for x
    x = 2,384,553,697.30/55,185.95
  6. Step 6: Final answer
    x = 43,209.43

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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.