Home / 98,571.32-136,029.72-56,130.02

Finding the Fourth Proportional to 98,571.32, 136,029.72 and 56,130.02

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Solution

The fourth proportional to 98,571.32, 136,029.72 and 56,130.02 is: 77,460.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,571.32 : 136,029.72 = 56,130.02 : x
  2. Step 2: Convert to fraction form
    98,571.32/136,029.72 = 56,130.02/x
  3. Step 3: Cross multiply
    98,571.32x = 136,029.72 × 56,130.02
  4. Step 4: Simplify right side
    98,571.32x = 7,635,350,904.19
  5. Step 5: Solve for x
    x = 7,635,350,904.19/98,571.32
  6. Step 6: Final answer
    x = 77,460.17

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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.