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Finding the Fourth Proportional to 55,790.84, 83,543.40 and 30,803.15

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Solution

The fourth proportional to 55,790.84, 83,543.40 and 30,803.15 is: 46,125.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,790.84 : 83,543.40 = 30,803.15 : x
  2. Step 2: Convert to fraction form
    55,790.84/83,543.40 = 30,803.15/x
  3. Step 3: Cross multiply
    55,790.84x = 83,543.40 × 30,803.15
  4. Step 4: Simplify right side
    55,790.84x = 2,573,400,090.57
  5. Step 5: Solve for x
    x = 2,573,400,090.57/55,790.84
  6. Step 6: Final answer
    x = 46,125.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.