Home / 89,955.36-124,137.36-61,670.16

Finding the Fourth Proportional to 89,955.36, 124,137.36 and 61,670.16

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Solution

The fourth proportional to 89,955.36, 124,137.36 and 61,670.16 is: 85,104.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,955.36 : 124,137.36 = 61,670.16 : x
  2. Step 2: Convert to fraction form
    89,955.36/124,137.36 = 61,670.16/x
  3. Step 3: Cross multiply
    89,955.36x = 124,137.36 × 61,670.16
  4. Step 4: Simplify right side
    89,955.36x = 7,655,570,853.18
  5. Step 5: Solve for x
    x = 7,655,570,853.18/89,955.36
  6. Step 6: Final answer
    x = 85,104.11

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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.