Home / 55,664.22-76,754.80-42,888.90

Finding the Fourth Proportional to 55,664.22, 76,754.80 and 42,888.90

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Solution

The fourth proportional to 55,664.22, 76,754.80 and 42,888.90 is: 59,139.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,664.22 : 76,754.80 = 42,888.90 : x
  2. Step 2: Convert to fraction form
    55,664.22/76,754.80 = 42,888.90/x
  3. Step 3: Cross multiply
    55,664.22x = 76,754.80 × 42,888.90
  4. Step 4: Simplify right side
    55,664.22x = 3,291,928,941.72
  5. Step 5: Solve for x
    x = 3,291,928,941.72/55,664.22
  6. Step 6: Final answer
    x = 59,139.05

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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.