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Finding the Fourth Proportional to 85,259.16, 117,664.65 and 47,026.20

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Solution

The fourth proportional to 85,259.16, 117,664.65 and 47,026.20 is: 64,900.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,259.16 : 117,664.65 = 47,026.20 : x
  2. Step 2: Convert to fraction form
    85,259.16/117,664.65 = 47,026.20/x
  3. Step 3: Cross multiply
    85,259.16x = 117,664.65 × 47,026.20
  4. Step 4: Simplify right side
    85,259.16x = 5,533,321,363.83
  5. Step 5: Solve for x
    x = 5,533,321,363.83/85,259.16
  6. Step 6: Final answer
    x = 64,900.02

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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.