Home / 51,306.50-70,812.60-30,085.76

Finding the Fourth Proportional to 51,306.50, 70,812.60 and 30,085.76

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Solution

The fourth proportional to 51,306.50, 70,812.60 and 30,085.76 is: 41,524.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,306.50 : 70,812.60 = 30,085.76 : x
  2. Step 2: Convert to fraction form
    51,306.50/70,812.60 = 30,085.76/x
  3. Step 3: Cross multiply
    51,306.50x = 70,812.60 × 30,085.76
  4. Step 4: Simplify right side
    51,306.50x = 2,130,450,888.58
  5. Step 5: Solve for x
    x = 2,130,450,888.58/51,306.50
  6. Step 6: Final answer
    x = 41,524.00

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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.