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Finding the Fourth Proportional to 55,652.70, 76,800.58 and 30,159.77

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Solution

The fourth proportional to 55,652.70, 76,800.58 and 30,159.77 is: 41,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,652.70 : 76,800.58 = 30,159.77 : x
  2. Step 2: Convert to fraction form
    55,652.70/76,800.58 = 30,159.77/x
  3. Step 3: Cross multiply
    55,652.70x = 76,800.58 × 30,159.77
  4. Step 4: Simplify right side
    55,652.70x = 2,316,287,828.67
  5. Step 5: Solve for x
    x = 2,316,287,828.67/55,652.70
  6. Step 6: Final answer
    x = 41,620.40

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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.