Home / 260,026.30-390,010.65-73,056.70

Finding the Fourth Proportional to 260,026.30, 390,010.65 and 73,056.70

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Solution

The fourth proportional to 260,026.30, 390,010.65 and 73,056.70 is: 109,576.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,026.30 : 390,010.65 = 73,056.70 : x
  2. Step 2: Convert to fraction form
    260,026.30/390,010.65 = 73,056.70/x
  3. Step 3: Cross multiply
    260,026.30x = 390,010.65 × 73,056.70
  4. Step 4: Simplify right side
    260,026.30x = 28,492,891,053.86
  5. Step 5: Solve for x
    x = 28,492,891,053.86/260,026.30
  6. Step 6: Final answer
    x = 109,576.96

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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.