Home / 90,087.50-124,319.93-49,802.28

Finding the Fourth Proportional to 90,087.50, 124,319.93 and 49,802.28

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Solution

The fourth proportional to 90,087.50, 124,319.93 and 49,802.28 is: 68,726.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,087.50 : 124,319.93 = 49,802.28 : x
  2. Step 2: Convert to fraction form
    90,087.50/124,319.93 = 49,802.28/x
  3. Step 3: Cross multiply
    90,087.50x = 124,319.93 × 49,802.28
  4. Step 4: Simplify right side
    90,087.50x = 6,191,415,714.43
  5. Step 5: Solve for x
    x = 6,191,415,714.43/90,087.50
  6. Step 6: Final answer
    x = 68,726.69

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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.