Home / 88,164.84-121,607.10-56,319.60

Finding the Fourth Proportional to 88,164.84, 121,607.10 and 56,319.60

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Solution

The fourth proportional to 88,164.84, 121,607.10 and 56,319.60 is: 77,682.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,164.84 : 121,607.10 = 56,319.60 : x
  2. Step 2: Convert to fraction form
    88,164.84/121,607.10 = 56,319.60/x
  3. Step 3: Cross multiply
    88,164.84x = 121,607.10 × 56,319.60
  4. Step 4: Simplify right side
    88,164.84x = 6,848,863,229.16
  5. Step 5: Solve for x
    x = 6,848,863,229.16/88,164.84
  6. Step 6: Final answer
    x = 77,682.48

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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.