Home / 55,607.07-76,737.78-30,456.57

Finding the Fourth Proportional to 55,607.07, 76,737.78 and 30,456.57

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Solution

The fourth proportional to 55,607.07, 76,737.78 and 30,456.57 is: 42,030.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,607.07 : 76,737.78 = 30,456.57 : x
  2. Step 2: Convert to fraction form
    55,607.07/76,737.78 = 30,456.57/x
  3. Step 3: Cross multiply
    55,607.07x = 76,737.78 × 30,456.57
  4. Step 4: Simplify right side
    55,607.07x = 2,337,169,855.98
  5. Step 5: Solve for x
    x = 2,337,169,855.98/55,607.07
  6. Step 6: Final answer
    x = 42,030.08

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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.