Home / 74,620.40-102,970.94-42,355.67

Finding the Fourth Proportional to 74,620.40, 102,970.94 and 42,355.67

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Solution

The fourth proportional to 74,620.40, 102,970.94 and 42,355.67 is: 58,447.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,620.40 : 102,970.94 = 42,355.67 : x
  2. Step 2: Convert to fraction form
    74,620.40/102,970.94 = 42,355.67/x
  3. Step 3: Cross multiply
    74,620.40x = 102,970.94 × 42,355.67
  4. Step 4: Simplify right side
    74,620.40x = 4,361,402,427.60
  5. Step 5: Solve for x
    x = 4,361,402,427.60/74,620.40
  6. Step 6: Final answer
    x = 58,447.86

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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.