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Finding the Fourth Proportional to 55,358.70, 83,038.05 and 51,640.80

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Solution

The fourth proportional to 55,358.70, 83,038.05 and 51,640.80 is: 77,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,358.70 : 83,038.05 = 51,640.80 : x
  2. Step 2: Convert to fraction form
    55,358.70/83,038.05 = 51,640.80/x
  3. Step 3: Cross multiply
    55,358.70x = 83,038.05 × 51,640.80
  4. Step 4: Simplify right side
    55,358.70x = 4,288,151,332.44
  5. Step 5: Solve for x
    x = 4,288,151,332.44/55,358.70
  6. Step 6: Final answer
    x = 77,461.20

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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.