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Finding the Fourth Proportional to 51,783.76, 77,598.33 and 26,790.40

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Solution

The fourth proportional to 51,783.76, 77,598.33 and 26,790.40 is: 40,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,783.76 : 77,598.33 = 26,790.40 : x
  2. Step 2: Convert to fraction form
    51,783.76/77,598.33 = 26,790.40/x
  3. Step 3: Cross multiply
    51,783.76x = 77,598.33 × 26,790.40
  4. Step 4: Simplify right side
    51,783.76x = 2,078,890,300.03
  5. Step 5: Solve for x
    x = 2,078,890,300.03/51,783.76
  6. Step 6: Final answer
    x = 40,145.60

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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.