Home / 85,518.07-118,015.12-47,792.32

Finding the Fourth Proportional to 85,518.07, 118,015.12 and 47,792.32

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Solution

The fourth proportional to 85,518.07, 118,015.12 and 47,792.32 is: 65,953.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,518.07 : 118,015.12 = 47,792.32 : x
  2. Step 2: Convert to fraction form
    85,518.07/118,015.12 = 47,792.32/x
  3. Step 3: Cross multiply
    85,518.07x = 118,015.12 × 47,792.32
  4. Step 4: Simplify right side
    85,518.07x = 5,640,216,379.88
  5. Step 5: Solve for x
    x = 5,640,216,379.88/85,518.07
  6. Step 6: Final answer
    x = 65,953.50

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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.