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Finding the Fourth Proportional to 61,283.79, 84,604.10 and 47,641.77

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Solution

The fourth proportional to 61,283.79, 84,604.10 and 47,641.77 is: 65,770.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,283.79 : 84,604.10 = 47,641.77 : x
  2. Step 2: Convert to fraction form
    61,283.79/84,604.10 = 47,641.77/x
  3. Step 3: Cross multiply
    61,283.79x = 84,604.10 × 47,641.77
  4. Step 4: Simplify right side
    61,283.79x = 4,030,688,835.05
  5. Step 5: Solve for x
    x = 4,030,688,835.05/61,283.79
  6. Step 6: Final answer
    x = 65,770.88

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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.