Home / 98,913.79-136,548.33-56,464.12

Finding the Fourth Proportional to 98,913.79, 136,548.33 and 56,464.12

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Solution

The fourth proportional to 98,913.79, 136,548.33 and 56,464.12 is: 77,947.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,913.79 : 136,548.33 = 56,464.12 : x
  2. Step 2: Convert to fraction form
    98,913.79/136,548.33 = 56,464.12/x
  3. Step 3: Cross multiply
    98,913.79x = 136,548.33 × 56,464.12
  4. Step 4: Simplify right side
    98,913.79x = 7,710,080,608.18
  5. Step 5: Solve for x
    x = 7,710,080,608.18/98,913.79
  6. Step 6: Final answer
    x = 77,947.48

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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.