Home / 65,316.99-90,116.18-38,086.94

Finding the Fourth Proportional to 65,316.99, 90,116.18 and 38,086.94

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Solution

The fourth proportional to 65,316.99, 90,116.18 and 38,086.94 is: 52,547.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,316.99 : 90,116.18 = 38,086.94 : x
  2. Step 2: Convert to fraction form
    65,316.99/90,116.18 = 38,086.94/x
  3. Step 3: Cross multiply
    65,316.99x = 90,116.18 × 38,086.94
  4. Step 4: Simplify right side
    65,316.99x = 3,432,248,899.67
  5. Step 5: Solve for x
    x = 3,432,248,899.67/65,316.99
  6. Step 6: Final answer
    x = 52,547.57

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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.