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Finding the Fourth Proportional to 64,120, 88,485.60 and 35,828.32

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Solution

The fourth proportional to 64,120, 88,485.60 and 35,828.32 is: 49,443.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,120 : 88,485.60 = 35,828.32 : x
  2. Step 2: Convert to fraction form
    64,120/88,485.60 = 35,828.32/x
  3. Step 3: Cross multiply
    64,120x = 88,485.60 × 35,828.32
  4. Step 4: Simplify right side
    64,120x = 3,170,290,392.19
  5. Step 5: Solve for x
    x = 3,170,290,392.19/64,120
  6. Step 6: Final answer
    x = 49,443.08

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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.