Home / 85,492.64-117,985.95-47,251.36

Finding the Fourth Proportional to 85,492.64, 117,985.95 and 47,251.36

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Solution

The fourth proportional to 85,492.64, 117,985.95 and 47,251.36 is: 65,210.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,492.64 : 117,985.95 = 47,251.36 : x
  2. Step 2: Convert to fraction form
    85,492.64/117,985.95 = 47,251.36/x
  3. Step 3: Cross multiply
    85,492.64x = 117,985.95 × 47,251.36
  4. Step 4: Simplify right side
    85,492.64x = 5,574,996,775.23
  5. Step 5: Solve for x
    x = 5,574,996,775.23/85,492.64
  6. Step 6: Final answer
    x = 65,210.26

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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.