Home / 90,030.51-124,247.96-49,744.28

Finding the Fourth Proportional to 90,030.51, 124,247.96 and 49,744.28

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Solution

The fourth proportional to 90,030.51, 124,247.96 and 49,744.28 is: 68,650.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,030.51 : 124,247.96 = 49,744.28 : x
  2. Step 2: Convert to fraction form
    90,030.51/124,247.96 = 49,744.28/x
  3. Step 3: Cross multiply
    90,030.51x = 124,247.96 × 49,744.28
  4. Step 4: Simplify right side
    90,030.51x = 6,180,625,311.67
  5. Step 5: Solve for x
    x = 6,180,625,311.67/90,030.51
  6. Step 6: Final answer
    x = 68,650.34

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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.