Home / 91,783.12-126,569.16-58,267.60

Finding the Fourth Proportional to 91,783.12, 126,569.16 and 58,267.60

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Solution

The fourth proportional to 91,783.12, 126,569.16 and 58,267.60 is: 80,351.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,783.12 : 126,569.16 = 58,267.60 : x
  2. Step 2: Convert to fraction form
    91,783.12/126,569.16 = 58,267.60/x
  3. Step 3: Cross multiply
    91,783.12x = 126,569.16 × 58,267.60
  4. Step 4: Simplify right side
    91,783.12x = 7,374,881,187.22
  5. Step 5: Solve for x
    x = 7,374,881,187.22/91,783.12
  6. Step 6: Final answer
    x = 80,351.17

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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.