Home / 75,789.95-104,528.48-66,695.67

Finding the Fourth Proportional to 75,789.95, 104,528.48 and 66,695.67

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Solution

The fourth proportional to 75,789.95, 104,528.48 and 66,695.67 is: 91,985.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,789.95 : 104,528.48 = 66,695.67 : x
  2. Step 2: Convert to fraction form
    75,789.95/104,528.48 = 66,695.67/x
  3. Step 3: Cross multiply
    75,789.95x = 104,528.48 × 66,695.67
  4. Step 4: Simplify right side
    75,789.95x = 6,971,596,674.20
  5. Step 5: Solve for x
    x = 6,971,596,674.20/75,789.95
  6. Step 6: Final answer
    x = 91,985.77

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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.