Home / 85,341.60-117,763.20-47,606.40

Finding the Fourth Proportional to 85,341.60, 117,763.20 and 47,606.40

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Solution

The fourth proportional to 85,341.60, 117,763.20 and 47,606.40 is: 65,692.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,341.60 : 117,763.20 = 47,606.40 : x
  2. Step 2: Convert to fraction form
    85,341.60/117,763.20 = 47,606.40/x
  3. Step 3: Cross multiply
    85,341.60x = 117,763.20 × 47,606.40
  4. Step 4: Simplify right side
    85,341.60x = 5,606,282,004.48
  5. Step 5: Solve for x
    x = 5,606,282,004.48/85,341.60
  6. Step 6: Final answer
    x = 65,692.25

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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.