Home / 90,066.13-124,283.77-49,779.88

Finding the Fourth Proportional to 90,066.13, 124,283.77 and 49,779.88

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Solution

The fourth proportional to 90,066.13, 124,283.77 and 49,779.88 is: 68,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,066.13 : 124,283.77 = 49,779.88 : x
  2. Step 2: Convert to fraction form
    90,066.13/124,283.77 = 49,779.88/x
  3. Step 3: Cross multiply
    90,066.13x = 124,283.77 × 49,779.88
  4. Step 4: Simplify right side
    90,066.13x = 6,186,831,420.48
  5. Step 5: Solve for x
    x = 6,186,831,420.48/90,066.13
  6. Step 6: Final answer
    x = 68,692.10

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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.