Home / 85,484.40-117,927-60,278.64

Finding the Fourth Proportional to 85,484.40, 117,927 and 60,278.64

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Solution

The fourth proportional to 85,484.40, 117,927 and 60,278.64 is: 83,155.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,484.40 : 117,927 = 60,278.64 : x
  2. Step 2: Convert to fraction form
    85,484.40/117,927 = 60,278.64/x
  3. Step 3: Cross multiply
    85,484.40x = 117,927 × 60,278.64
  4. Step 4: Simplify right side
    85,484.40x = 7,108,479,179.28
  5. Step 5: Solve for x
    x = 7,108,479,179.28/85,484.40
  6. Step 6: Final answer
    x = 83,155.28

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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.