Home / 52,287.60-78,429.96-20,714.16

Finding the Fourth Proportional to 52,287.60, 78,429.96 and 20,714.16

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Solution

The fourth proportional to 52,287.60, 78,429.96 and 20,714.16 is: 31,070.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,287.60 : 78,429.96 = 20,714.16 : x
  2. Step 2: Convert to fraction form
    52,287.60/78,429.96 = 20,714.16/x
  3. Step 3: Cross multiply
    52,287.60x = 78,429.96 × 20,714.16
  4. Step 4: Simplify right side
    52,287.60x = 1,624,610,740.23
  5. Step 5: Solve for x
    x = 1,624,610,740.23/52,287.60
  6. Step 6: Final answer
    x = 31,070.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.