Home / 55,780.77-76,903.17-40,453.55

Finding the Fourth Proportional to 55,780.77, 76,903.17 and 40,453.55

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Solution

The fourth proportional to 55,780.77, 76,903.17 and 40,453.55 is: 55,772.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,780.77 : 76,903.17 = 40,453.55 : x
  2. Step 2: Convert to fraction form
    55,780.77/76,903.17 = 40,453.55/x
  3. Step 3: Cross multiply
    55,780.77x = 76,903.17 × 40,453.55
  4. Step 4: Simplify right side
    55,780.77x = 3,111,005,848.24
  5. Step 5: Solve for x
    x = 3,111,005,848.24/55,780.77
  6. Step 6: Final answer
    x = 55,772.01

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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.