Home / 55,810.50-77,018.52-30,661.62

Finding the Fourth Proportional to 55,810.50, 77,018.52 and 30,661.62

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Solution

The fourth proportional to 55,810.50, 77,018.52 and 30,661.62 is: 42,313.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,810.50 : 77,018.52 = 30,661.62 : x
  2. Step 2: Convert to fraction form
    55,810.50/77,018.52 = 30,661.62/x
  3. Step 3: Cross multiply
    55,810.50x = 77,018.52 × 30,661.62
  4. Step 4: Simplify right side
    55,810.50x = 2,361,512,593.20
  5. Step 5: Solve for x
    x = 2,361,512,593.20/55,810.50
  6. Step 6: Final answer
    x = 42,313.05

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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.