Home / 44,145.16-66,218.94-12,981.40

Finding the Fourth Proportional to 44,145.16, 66,218.94 and 12,981.40

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Solution

The fourth proportional to 44,145.16, 66,218.94 and 12,981.40 is: 19,472.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,145.16 : 66,218.94 = 12,981.40 : x
  2. Step 2: Convert to fraction form
    44,145.16/66,218.94 = 12,981.40/x
  3. Step 3: Cross multiply
    44,145.16x = 66,218.94 × 12,981.40
  4. Step 4: Simplify right side
    44,145.16x = 859,614,547.72
  5. Step 5: Solve for x
    x = 859,614,547.72/44,145.16
  6. Step 6: Final answer
    x = 19,472.45

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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.