Home / 77,579.16-107,062.55-43,587.72

Finding the Fourth Proportional to 77,579.16, 107,062.55 and 43,587.72

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Solution

The fourth proportional to 77,579.16, 107,062.55 and 43,587.72 is: 60,152.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,579.16 : 107,062.55 = 43,587.72 : x
  2. Step 2: Convert to fraction form
    77,579.16/107,062.55 = 43,587.72/x
  3. Step 3: Cross multiply
    77,579.16x = 107,062.55 × 43,587.72
  4. Step 4: Simplify right side
    77,579.16x = 4,666,611,916.57
  5. Step 5: Solve for x
    x = 4,666,611,916.57/77,579.16
  6. Step 6: Final answer
    x = 60,152.90

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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.