Home / 88,778.76-122,368.41-62,945.70

Finding the Fourth Proportional to 88,778.76, 122,368.41 and 62,945.70

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Solution

The fourth proportional to 88,778.76, 122,368.41 and 62,945.70 is: 86,761.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,778.76 : 122,368.41 = 62,945.70 : x
  2. Step 2: Convert to fraction form
    88,778.76/122,368.41 = 62,945.70/x
  3. Step 3: Cross multiply
    88,778.76x = 122,368.41 × 62,945.70
  4. Step 4: Simplify right side
    88,778.76x = 7,702,565,225.34
  5. Step 5: Solve for x
    x = 7,702,565,225.34/88,778.76
  6. Step 6: Final answer
    x = 86,761.35

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1.5x scale

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.