Home / 51,037.50-70,432.11-28,681.50

Finding the Fourth Proportional to 51,037.50, 70,432.11 and 28,681.50

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Solution

The fourth proportional to 51,037.50, 70,432.11 and 28,681.50 is: 39,580.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,037.50 : 70,432.11 = 28,681.50 : x
  2. Step 2: Convert to fraction form
    51,037.50/70,432.11 = 28,681.50/x
  3. Step 3: Cross multiply
    51,037.50x = 70,432.11 × 28,681.50
  4. Step 4: Simplify right side
    51,037.50x = 2,020,098,562.97
  5. Step 5: Solve for x
    x = 2,020,098,562.97/51,037.50
  6. Step 6: Final answer
    x = 39,580.67

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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.