Home / 86,109.07-118,826.80-47,868.53

Finding the Fourth Proportional to 86,109.07, 118,826.80 and 47,868.53

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Solution

The fourth proportional to 86,109.07, 118,826.80 and 47,868.53 is: 66,056.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,109.07 : 118,826.80 = 47,868.53 : x
  2. Step 2: Convert to fraction form
    86,109.07/118,826.80 = 47,868.53/x
  3. Step 3: Cross multiply
    86,109.07x = 118,826.80 × 47,868.53
  4. Step 4: Simplify right side
    86,109.07x = 5,688,064,240.60
  5. Step 5: Solve for x
    x = 5,688,064,240.60/86,109.07
  6. Step 6: Final answer
    x = 66,056.51

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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.