Home / 51,240.65-70,701.35-31,108.13

Finding the Fourth Proportional to 51,240.65, 70,701.35 and 31,108.13

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Solution

The fourth proportional to 51,240.65, 70,701.35 and 31,108.13 is: 42,922.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,240.65 : 70,701.35 = 31,108.13 : x
  2. Step 2: Convert to fraction form
    51,240.65/70,701.35 = 31,108.13/x
  3. Step 3: Cross multiply
    51,240.65x = 70,701.35 × 31,108.13
  4. Step 4: Simplify right side
    51,240.65x = 2,199,386,631.43
  5. Step 5: Solve for x
    x = 2,199,386,631.43/51,240.65
  6. Step 6: Final answer
    x = 42,922.69

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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.