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Finding the Fourth Proportional to 45,488.70, 63,815.40 and 45,488.70

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Solution

The fourth proportional to 45,488.70, 63,815.40 and 45,488.70 is: 63,815.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,488.70 : 63,815.40 = 45,488.70 : x
  2. Step 2: Convert to fraction form
    45,488.70/63,815.40 = 45,488.70/x
  3. Step 3: Cross multiply
    45,488.70x = 63,815.40 × 45,488.70
  4. Step 4: Simplify right side
    45,488.70x = 2,902,879,585.98
  5. Step 5: Solve for x
    x = 2,902,879,585.98/45,488.70
  6. Step 6: Final answer
    x = 63,815.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.