Home / 77,407.35-106,832.03-45,579.21

Finding the Fourth Proportional to 77,407.35, 106,832.03 and 45,579.21

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Solution

The fourth proportional to 77,407.35, 106,832.03 and 45,579.21 is: 62,905.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,407.35 : 106,832.03 = 45,579.21 : x
  2. Step 2: Convert to fraction form
    77,407.35/106,832.03 = 45,579.21/x
  3. Step 3: Cross multiply
    77,407.35x = 106,832.03 × 45,579.21
  4. Step 4: Simplify right side
    77,407.35x = 4,869,319,302.20
  5. Step 5: Solve for x
    x = 4,869,319,302.20/77,407.35
  6. Step 6: Final answer
    x = 62,905.13

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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.