Home / 77,998.07-117,011.69-31,254.59

Finding the Fourth Proportional to 77,998.07, 117,011.69 and 31,254.59

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Solution

The fourth proportional to 77,998.07, 117,011.69 and 31,254.59 is: 46,887.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,998.07 : 117,011.69 = 31,254.59 : x
  2. Step 2: Convert to fraction form
    77,998.07/117,011.69 = 31,254.59/x
  3. Step 3: Cross multiply
    77,998.07x = 117,011.69 × 31,254.59
  4. Step 4: Simplify right side
    77,998.07x = 3,657,151,654.83
  5. Step 5: Solve for x
    x = 3,657,151,654.83/77,998.07
  6. Step 6: Final answer
    x = 46,887.72

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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.