Home / 88,020.81-121,495.55-70,238.07

Finding the Fourth Proportional to 88,020.81, 121,495.55 and 70,238.07

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Solution

The fourth proportional to 88,020.81, 121,495.55 and 70,238.07 is: 96,949.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,020.81 : 121,495.55 = 70,238.07 : x
  2. Step 2: Convert to fraction form
    88,020.81/121,495.55 = 70,238.07/x
  3. Step 3: Cross multiply
    88,020.81x = 121,495.55 × 70,238.07
  4. Step 4: Simplify right side
    88,020.81x = 8,533,612,594.40
  5. Step 5: Solve for x
    x = 8,533,612,594.40/88,020.81
  6. Step 6: Final answer
    x = 96,949.94

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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.