Home / 90,094.21-124,319.21-49,802.51

Finding the Fourth Proportional to 90,094.21, 124,319.21 and 49,802.51

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Solution

The fourth proportional to 90,094.21, 124,319.21 and 49,802.51 is: 68,721.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,094.21 : 124,319.21 = 49,802.51 : x
  2. Step 2: Convert to fraction form
    90,094.21/124,319.21 = 49,802.51/x
  3. Step 3: Cross multiply
    90,094.21x = 124,319.21 × 49,802.51
  4. Step 4: Simplify right side
    90,094.21x = 6,191,408,761.00
  5. Step 5: Solve for x
    x = 6,191,408,761.00/90,094.21
  6. Step 6: Final answer
    x = 68,721.50

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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.