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Finding the Fourth Proportional to 94,770, 130,782.60 and 57,051.54

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Solution

The fourth proportional to 94,770, 130,782.60 and 57,051.54 is: 78,731.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,770 : 130,782.60 = 57,051.54 : x
  2. Step 2: Convert to fraction form
    94,770/130,782.60 = 57,051.54/x
  3. Step 3: Cross multiply
    94,770x = 130,782.60 × 57,051.54
  4. Step 4: Simplify right side
    94,770x = 7,461,348,735.20
  5. Step 5: Solve for x
    x = 7,461,348,735.20/94,770
  6. Step 6: Final answer
    x = 78,731.13

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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.