Home / 77,254.48-106,621.98-55,813.61

Finding the Fourth Proportional to 77,254.48, 106,621.98 and 55,813.61

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Solution

The fourth proportional to 77,254.48, 106,621.98 and 55,813.61 is: 77,030.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,254.48 : 106,621.98 = 55,813.61 : x
  2. Step 2: Convert to fraction form
    77,254.48/106,621.98 = 55,813.61/x
  3. Step 3: Cross multiply
    77,254.48x = 106,621.98 × 55,813.61
  4. Step 4: Simplify right side
    77,254.48x = 5,950,957,609.15
  5. Step 5: Solve for x
    x = 5,950,957,609.15/77,254.48
  6. Step 6: Final answer
    x = 77,030.58

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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.