Home / 98,947.17-136,570.86-56,530.31

Finding the Fourth Proportional to 98,947.17, 136,570.86 and 56,530.31

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Solution

The fourth proportional to 98,947.17, 136,570.86 and 56,530.31 is: 78,025.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,947.17 : 136,570.86 = 56,530.31 : x
  2. Step 2: Convert to fraction form
    98,947.17/136,570.86 = 56,530.31/x
  3. Step 3: Cross multiply
    98,947.17x = 136,570.86 × 56,530.31
  4. Step 4: Simplify right side
    98,947.17x = 7,720,392,369.91
  5. Step 5: Solve for x
    x = 7,720,392,369.91/98,947.17
  6. Step 6: Final answer
    x = 78,025.40

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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.