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Finding the Fourth Proportional to 61,499.60, 84,860.07 and 34,640.40

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Solution

The fourth proportional to 61,499.60, 84,860.07 and 34,640.40 is: 47,798.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,499.60 : 84,860.07 = 34,640.40 : x
  2. Step 2: Convert to fraction form
    61,499.60/84,860.07 = 34,640.40/x
  3. Step 3: Cross multiply
    61,499.60x = 84,860.07 × 34,640.40
  4. Step 4: Simplify right side
    61,499.60x = 2,939,586,768.83
  5. Step 5: Solve for x
    x = 2,939,586,768.83/61,499.60
  6. Step 6: Final answer
    x = 47,798.47

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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.