Home / 90,018-124,223.37-49,733.46

Finding the Fourth Proportional to 90,018, 124,223.37 and 49,733.46

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Solution

The fourth proportional to 90,018, 124,223.37 and 49,733.46 is: 68,631.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,018 : 124,223.37 = 49,733.46 : x
  2. Step 2: Convert to fraction form
    90,018/124,223.37 = 49,733.46/x
  3. Step 3: Cross multiply
    90,018x = 124,223.37 × 49,733.46
  4. Step 4: Simplify right side
    90,018x = 6,178,058,002.96
  5. Step 5: Solve for x
    x = 6,178,058,002.96/90,018
  6. Step 6: Final answer
    x = 68,631.36

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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.