Home / 86,220.32-118,973.60-47,970.84

Finding the Fourth Proportional to 86,220.32, 118,973.60 and 47,970.84

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Solution

The fourth proportional to 86,220.32, 118,973.60 and 47,970.84 is: 66,193.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,220.32 : 118,973.60 = 47,970.84 : x
  2. Step 2: Convert to fraction form
    86,220.32/118,973.60 = 47,970.84/x
  3. Step 3: Cross multiply
    86,220.32x = 118,973.60 × 47,970.84
  4. Step 4: Simplify right side
    86,220.32x = 5,707,263,529.82
  5. Step 5: Solve for x
    x = 5,707,263,529.82/86,220.32
  6. Step 6: Final answer
    x = 66,193.95

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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.