Home / 427,581.48-641,392.88-112,038.69

Finding the Fourth Proportional to 427,581.48, 641,392.88 and 112,038.69

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Solution

The fourth proportional to 427,581.48, 641,392.88 and 112,038.69 is: 168,063.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,581.48 : 641,392.88 = 112,038.69 : x
  2. Step 2: Convert to fraction form
    427,581.48/641,392.88 = 112,038.69/x
  3. Step 3: Cross multiply
    427,581.48x = 641,392.88 × 112,038.69
  4. Step 4: Simplify right side
    427,581.48x = 71,860,818,050.53
  5. Step 5: Solve for x
    x = 71,860,818,050.53/427,581.48
  6. Step 6: Final answer
    x = 168,063.45

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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.