Home / 77,148.09-115,603.07-52,089.93

Finding the Fourth Proportional to 77,148.09, 115,603.07 and 52,089.93

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Solution

The fourth proportional to 77,148.09, 115,603.07 and 52,089.93 is: 78,054.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,148.09 : 115,603.07 = 52,089.93 : x
  2. Step 2: Convert to fraction form
    77,148.09/115,603.07 = 52,089.93/x
  3. Step 3: Cross multiply
    77,148.09x = 115,603.07 × 52,089.93
  4. Step 4: Simplify right side
    77,148.09x = 6,021,755,563.64
  5. Step 5: Solve for x
    x = 6,021,755,563.64/77,148.09
  6. Step 6: Final answer
    x = 78,054.50

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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.