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Finding the Fourth Proportional to 79,420.08, 109,602.30 and 45,886.08

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Solution

The fourth proportional to 79,420.08, 109,602.30 and 45,886.08 is: 63,324.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,420.08 : 109,602.30 = 45,886.08 : x
  2. Step 2: Convert to fraction form
    79,420.08/109,602.30 = 45,886.08/x
  3. Step 3: Cross multiply
    79,420.08x = 109,602.30 × 45,886.08
  4. Step 4: Simplify right side
    79,420.08x = 5,029,219,905.98
  5. Step 5: Solve for x
    x = 5,029,219,905.98/79,420.08
  6. Step 6: Final answer
    x = 63,324.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.