Home / 98,548.93-135,981.88-56,108.29

Finding the Fourth Proportional to 98,548.93, 135,981.88 and 56,108.29

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Solution

The fourth proportional to 98,548.93, 135,981.88 and 56,108.29 is: 77,420.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,548.93 : 135,981.88 = 56,108.29 : x
  2. Step 2: Convert to fraction form
    98,548.93/135,981.88 = 56,108.29/x
  3. Step 3: Cross multiply
    98,548.93x = 135,981.88 × 56,108.29
  4. Step 4: Simplify right side
    98,548.93x = 7,629,710,757.79
  5. Step 5: Solve for x
    x = 7,629,710,757.79/98,548.93
  6. Step 6: Final answer
    x = 77,420.53

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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.