Home / 88,421.32-122,018.46-52,603.12

Finding the Fourth Proportional to 88,421.32, 122,018.46 and 52,603.12

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Solution

The fourth proportional to 88,421.32, 122,018.46 and 52,603.12 is: 72,590.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,421.32 : 122,018.46 = 52,603.12 : x
  2. Step 2: Convert to fraction form
    88,421.32/122,018.46 = 52,603.12/x
  3. Step 3: Cross multiply
    88,421.32x = 122,018.46 × 52,603.12
  4. Step 4: Simplify right side
    88,421.32x = 6,418,551,693.60
  5. Step 5: Solve for x
    x = 6,418,551,693.60/88,421.32
  6. Step 6: Final answer
    x = 72,590.54

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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.