Home / 77,998.63-117,012.52-31,255.15

Finding the Fourth Proportional to 77,998.63, 117,012.52 and 31,255.15

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Solution

The fourth proportional to 77,998.63, 117,012.52 and 31,255.15 is: 46,888.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,998.63 : 117,012.52 = 31,255.15 : x
  2. Step 2: Convert to fraction form
    77,998.63/117,012.52 = 31,255.15/x
  3. Step 3: Cross multiply
    77,998.63x = 117,012.52 × 31,255.15
  4. Step 4: Simplify right side
    77,998.63x = 3,657,243,864.48
  5. Step 5: Solve for x
    x = 3,657,243,864.48/77,998.63
  6. Step 6: Final answer
    x = 46,888.57

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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.