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Finding the Fourth Proportional to 63,980.16, 88,291.80 and 35,686.32

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Solution

The fourth proportional to 63,980.16, 88,291.80 and 35,686.32 is: 49,246.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,980.16 : 88,291.80 = 35,686.32 : x
  2. Step 2: Convert to fraction form
    63,980.16/88,291.80 = 35,686.32/x
  3. Step 3: Cross multiply
    63,980.16x = 88,291.80 × 35,686.32
  4. Step 4: Simplify right side
    63,980.16x = 3,150,809,428.18
  5. Step 5: Solve for x
    x = 3,150,809,428.18/63,980.16
  6. Step 6: Final answer
    x = 49,246.66

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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.