Home / 65,521.48-98,281.68-18,774.40

Finding the Fourth Proportional to 65,521.48, 98,281.68 and 18,774.40

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Solution

The fourth proportional to 65,521.48, 98,281.68 and 18,774.40 is: 28,161.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,521.48 : 98,281.68 = 18,774.40 : x
  2. Step 2: Convert to fraction form
    65,521.48/98,281.68 = 18,774.40/x
  3. Step 3: Cross multiply
    65,521.48x = 98,281.68 × 18,774.40
  4. Step 4: Simplify right side
    65,521.48x = 1,845,179,572.99
  5. Step 5: Solve for x
    x = 1,845,179,572.99/65,521.48
  6. Step 6: Final answer
    x = 28,161.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.