Home / 115,281.59-172,938.56-40,384.58

Finding the Fourth Proportional to 115,281.59, 172,938.56 and 40,384.58

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Solution

The fourth proportional to 115,281.59, 172,938.56 and 40,384.58 is: 60,582.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,281.59 : 172,938.56 = 40,384.58 : x
  2. Step 2: Convert to fraction form
    115,281.59/172,938.56 = 40,384.58/x
  3. Step 3: Cross multiply
    115,281.59x = 172,938.56 × 40,384.58
  4. Step 4: Simplify right side
    115,281.59x = 6,984,051,111.40
  5. Step 5: Solve for x
    x = 6,984,051,111.40/115,281.59
  6. Step 6: Final answer
    x = 60,582.54

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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.