Home / 65,146.95-89,904.99-38,289.08

Finding the Fourth Proportional to 65,146.95, 89,904.99 and 38,289.08

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Solution

The fourth proportional to 65,146.95, 89,904.99 and 38,289.08 is: 52,840.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,146.95 : 89,904.99 = 38,289.08 : x
  2. Step 2: Convert to fraction form
    65,146.95/89,904.99 = 38,289.08/x
  3. Step 3: Cross multiply
    65,146.95x = 89,904.99 × 38,289.08
  4. Step 4: Simplify right side
    65,146.95x = 3,442,378,904.98
  5. Step 5: Solve for x
    x = 3,442,378,904.98/65,146.95
  6. Step 6: Final answer
    x = 52,840.22

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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.