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Finding the Fourth Proportional to 77,430.90, 116,067.90 and 52,473.45

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Solution

The fourth proportional to 77,430.90, 116,067.90 and 52,473.45 is: 78,657.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,430.90 : 116,067.90 = 52,473.45 : x
  2. Step 2: Convert to fraction form
    77,430.90/116,067.90 = 52,473.45/x
  3. Step 3: Cross multiply
    77,430.90x = 116,067.90 × 52,473.45
  4. Step 4: Simplify right side
    77,430.90x = 6,090,483,147.26
  5. Step 5: Solve for x
    x = 6,090,483,147.26/77,430.90
  6. Step 6: Final answer
    x = 78,657.01

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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.