Home / 55,785.51-76,990.30-33,130.01

Finding the Fourth Proportional to 55,785.51, 76,990.30 and 33,130.01

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Solution

The fourth proportional to 55,785.51, 76,990.30 and 33,130.01 is: 45,723.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,785.51 : 76,990.30 = 33,130.01 : x
  2. Step 2: Convert to fraction form
    55,785.51/76,990.30 = 33,130.01/x
  3. Step 3: Cross multiply
    55,785.51x = 76,990.30 × 33,130.01
  4. Step 4: Simplify right side
    55,785.51x = 2,550,689,518.55
  5. Step 5: Solve for x
    x = 2,550,689,518.55/55,785.51
  6. Step 6: Final answer
    x = 45,723.15

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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.