Home / 87,026.40-130,539.60-69,530.40

Finding the Fourth Proportional to 87,026.40, 130,539.60 and 69,530.40

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Solution

The fourth proportional to 87,026.40, 130,539.60 and 69,530.40 is: 104,295.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,026.40 : 130,539.60 = 69,530.40 : x
  2. Step 2: Convert to fraction form
    87,026.40/130,539.60 = 69,530.40/x
  3. Step 3: Cross multiply
    87,026.40x = 130,539.60 × 69,530.40
  4. Step 4: Simplify right side
    87,026.40x = 9,076,470,603.84
  5. Step 5: Solve for x
    x = 9,076,470,603.84/87,026.40
  6. Step 6: Final answer
    x = 104,295.60

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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.