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Finding the Fourth Proportional to 63,128.04, 94,705.02 and 18,750.84

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Solution

The fourth proportional to 63,128.04, 94,705.02 and 18,750.84 is: 28,130.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,128.04 : 94,705.02 = 18,750.84 : x
  2. Step 2: Convert to fraction form
    63,128.04/94,705.02 = 18,750.84/x
  3. Step 3: Cross multiply
    63,128.04x = 94,705.02 × 18,750.84
  4. Step 4: Simplify right side
    63,128.04x = 1,775,798,677.22
  5. Step 5: Solve for x
    x = 1,775,798,677.22/63,128.04
  6. Step 6: Final answer
    x = 28,130.11

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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.