Home / 98,792.78-136,332.65-56,352.02

Finding the Fourth Proportional to 98,792.78, 136,332.65 and 56,352.02

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Solution

The fourth proportional to 98,792.78, 136,332.65 and 56,352.02 is: 77,765.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,792.78 : 136,332.65 = 56,352.02 : x
  2. Step 2: Convert to fraction form
    98,792.78/136,332.65 = 56,352.02/x
  3. Step 3: Cross multiply
    98,792.78x = 136,332.65 × 56,352.02
  4. Step 4: Simplify right side
    98,792.78x = 7,682,619,678.67
  5. Step 5: Solve for x
    x = 7,682,619,678.67/98,792.78
  6. Step 6: Final answer
    x = 77,765.00

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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.