Home / 85,573.36-128,312.63-35,007.89

Finding the Fourth Proportional to 85,573.36, 128,312.63 and 35,007.89

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Solution

The fourth proportional to 85,573.36, 128,312.63 and 35,007.89 is: 52,492.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,573.36 : 128,312.63 = 35,007.89 : x
  2. Step 2: Convert to fraction form
    85,573.36/128,312.63 = 35,007.89/x
  3. Step 3: Cross multiply
    85,573.36x = 128,312.63 × 35,007.89
  4. Step 4: Simplify right side
    85,573.36x = 4,491,954,261.61
  5. Step 5: Solve for x
    x = 4,491,954,261.61/85,573.36
  6. Step 6: Final answer
    x = 52,492.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.