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Finding the Fourth Proportional to 55,802.87, 77,008.53 and 30,309.48

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Solution

The fourth proportional to 55,802.87, 77,008.53 and 30,309.48 is: 41,827.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,802.87 : 77,008.53 = 30,309.48 : x
  2. Step 2: Convert to fraction form
    55,802.87/77,008.53 = 30,309.48/x
  3. Step 3: Cross multiply
    55,802.87x = 77,008.53 × 30,309.48
  4. Step 4: Simplify right side
    55,802.87x = 2,334,088,499.86
  5. Step 5: Solve for x
    x = 2,334,088,499.86/55,802.87
  6. Step 6: Final answer
    x = 41,827.39

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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.