Home / 80,639.08-111,269.70-44,829.40

Finding the Fourth Proportional to 80,639.08, 111,269.70 and 44,829.40

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Solution

The fourth proportional to 80,639.08, 111,269.70 and 44,829.40 is: 61,857.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,639.08 : 111,269.70 = 44,829.40 : x
  2. Step 2: Convert to fraction form
    80,639.08/111,269.70 = 44,829.40/x
  3. Step 3: Cross multiply
    80,639.08x = 111,269.70 × 44,829.40
  4. Step 4: Simplify right side
    80,639.08x = 4,988,153,889.18
  5. Step 5: Solve for x
    x = 4,988,153,889.18/80,639.08
  6. Step 6: Final answer
    x = 61,857.77

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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.