Home / 85,881.10-118,517.08-64,332.67

Finding the Fourth Proportional to 85,881.10, 118,517.08 and 64,332.67

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Solution

The fourth proportional to 85,881.10, 118,517.08 and 64,332.67 is: 88,779.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,881.10 : 118,517.08 = 64,332.67 : x
  2. Step 2: Convert to fraction form
    85,881.10/118,517.08 = 64,332.67/x
  3. Step 3: Cross multiply
    85,881.10x = 118,517.08 × 64,332.67
  4. Step 4: Simplify right side
    85,881.10x = 7,624,520,197.00
  5. Step 5: Solve for x
    x = 7,624,520,197.00/85,881.10
  6. Step 6: Final answer
    x = 88,779.96

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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.