Home / 98,956.84-136,545.60-56,506.36

Finding the Fourth Proportional to 98,956.84, 136,545.60 and 56,506.36

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Solution

The fourth proportional to 98,956.84, 136,545.60 and 56,506.36 is: 77,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,956.84 : 136,545.60 = 56,506.36 : x
  2. Step 2: Convert to fraction form
    98,956.84/136,545.60 = 56,506.36/x
  3. Step 3: Cross multiply
    98,956.84x = 136,545.60 × 56,506.36
  4. Step 4: Simplify right side
    98,956.84x = 7,715,694,830.02
  5. Step 5: Solve for x
    x = 7,715,694,830.02/98,956.84
  6. Step 6: Final answer
    x = 77,970.30

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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.