Home / 98,648.47-136,138.04-56,209.74

Finding the Fourth Proportional to 98,648.47, 136,138.04 and 56,209.74

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Solution

The fourth proportional to 98,648.47, 136,138.04 and 56,209.74 is: 77,571.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,648.47 : 136,138.04 = 56,209.74 : x
  2. Step 2: Convert to fraction form
    98,648.47/136,138.04 = 56,209.74/x
  3. Step 3: Cross multiply
    98,648.47x = 136,138.04 × 56,209.74
  4. Step 4: Simplify right side
    98,648.47x = 7,652,283,832.51
  5. Step 5: Solve for x
    x = 7,652,283,832.51/98,648.47
  6. Step 6: Final answer
    x = 77,571.24

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1.5x scale

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.