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Finding the Fourth Proportional to 69,763.68, 96,270.72 and 39,547.20

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Solution

The fourth proportional to 69,763.68, 96,270.72 and 39,547.20 is: 54,573.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,763.68 : 96,270.72 = 39,547.20 : x
  2. Step 2: Convert to fraction form
    69,763.68/96,270.72 = 39,547.20/x
  3. Step 3: Cross multiply
    69,763.68x = 96,270.72 × 39,547.20
  4. Step 4: Simplify right side
    69,763.68x = 3,807,237,417.98
  5. Step 5: Solve for x
    x = 3,807,237,417.98/69,763.68
  6. Step 6: Final answer
    x = 54,573.35

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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.