Home / 287,243.53-430,929.90-87,584.10

Finding the Fourth Proportional to 287,243.53, 430,929.90 and 87,584.10

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Solution

The fourth proportional to 287,243.53, 430,929.90 and 87,584.10 is: 131,395.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,243.53 : 430,929.90 = 87,584.10 : x
  2. Step 2: Convert to fraction form
    287,243.53/430,929.90 = 87,584.10/x
  3. Step 3: Cross multiply
    287,243.53x = 430,929.90 × 87,584.10
  4. Step 4: Simplify right side
    287,243.53x = 37,742,607,454.59
  5. Step 5: Solve for x
    x = 37,742,607,454.59/287,243.53
  6. Step 6: Final answer
    x = 131,395.85

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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.