Home / 45,856.08-68,702.10-28,305.40

Finding the Fourth Proportional to 45,856.08, 68,702.10 and 28,305.40

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Solution

The fourth proportional to 45,856.08, 68,702.10 and 28,305.40 is: 42,407.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,856.08 : 68,702.10 = 28,305.40 : x
  2. Step 2: Convert to fraction form
    45,856.08/68,702.10 = 28,305.40/x
  3. Step 3: Cross multiply
    45,856.08x = 68,702.10 × 28,305.40
  4. Step 4: Simplify right side
    45,856.08x = 1,944,640,421.34
  5. Step 5: Solve for x
    x = 1,944,640,421.34/45,856.08
  6. Step 6: Final answer
    x = 42,407.48

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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.