Home / 77,989.08-107,638.16-44,007.20

Finding the Fourth Proportional to 77,989.08, 107,638.16 and 44,007.20

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Solution

The fourth proportional to 77,989.08, 107,638.16 and 44,007.20 is: 60,737.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,989.08 : 107,638.16 = 44,007.20 : x
  2. Step 2: Convert to fraction form
    77,989.08/107,638.16 = 44,007.20/x
  3. Step 3: Cross multiply
    77,989.08x = 107,638.16 × 44,007.20
  4. Step 4: Simplify right side
    77,989.08x = 4,736,853,386.54
  5. Step 5: Solve for x
    x = 4,736,853,386.54/77,989.08
  6. Step 6: Final answer
    x = 60,737.40

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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.