Home / 74,355.40-102,585.48-42,501.76

Finding the Fourth Proportional to 74,355.40, 102,585.48 and 42,501.76

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Solution

The fourth proportional to 74,355.40, 102,585.48 and 42,501.76 is: 58,638.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,355.40 : 102,585.48 = 42,501.76 : x
  2. Step 2: Convert to fraction form
    74,355.40/102,585.48 = 42,501.76/x
  3. Step 3: Cross multiply
    74,355.40x = 102,585.48 × 42,501.76
  4. Step 4: Simplify right side
    74,355.40x = 4,360,063,450.44
  5. Step 5: Solve for x
    x = 4,360,063,450.44/74,355.40
  6. Step 6: Final answer
    x = 58,638.15

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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.