Home / 58,145.40-87,218.08-18,702.50

Finding the Fourth Proportional to 58,145.40, 87,218.08 and 18,702.50

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Solution

The fourth proportional to 58,145.40, 87,218.08 and 18,702.50 is: 28,053.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,145.40 : 87,218.08 = 18,702.50 : x
  2. Step 2: Convert to fraction form
    58,145.40/87,218.08 = 18,702.50/x
  3. Step 3: Cross multiply
    58,145.40x = 87,218.08 × 18,702.50
  4. Step 4: Simplify right side
    58,145.40x = 1,631,195,658.35
  5. Step 5: Solve for x
    x = 1,631,195,658.35/58,145.40
  6. Step 6: Final answer
    x = 28,053.74

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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.