Home / 85,555.32-118,066.74-47,828.76

Finding the Fourth Proportional to 85,555.32, 118,066.74 and 47,828.76

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Solution

The fourth proportional to 85,555.32, 118,066.74 and 47,828.76 is: 66,003.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,555.32 : 118,066.74 = 47,828.76 : x
  2. Step 2: Convert to fraction form
    85,555.32/118,066.74 = 47,828.76/x
  3. Step 3: Cross multiply
    85,555.32x = 118,066.74 × 47,828.76
  4. Step 4: Simplify right side
    85,555.32x = 5,646,985,771.44
  5. Step 5: Solve for x
    x = 5,646,985,771.44/85,555.32
  6. Step 6: Final answer
    x = 66,003.91

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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.