Home / 55,931.10-83,896.65-53,780.70

Finding the Fourth Proportional to 55,931.10, 83,896.65 and 53,780.70

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Solution

The fourth proportional to 55,931.10, 83,896.65 and 53,780.70 is: 80,671.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,931.10 : 83,896.65 = 53,780.70 : x
  2. Step 2: Convert to fraction form
    55,931.10/83,896.65 = 53,780.70/x
  3. Step 3: Cross multiply
    55,931.10x = 83,896.65 × 53,780.70
  4. Step 4: Simplify right side
    55,931.10x = 4,512,020,564.66
  5. Step 5: Solve for x
    x = 4,512,020,564.66/55,931.10
  6. Step 6: Final answer
    x = 80,671.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.