Home / 51,154.02-70,590.21-28,491.78

Finding the Fourth Proportional to 51,154.02, 70,590.21 and 28,491.78

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Solution

The fourth proportional to 51,154.02, 70,590.21 and 28,491.78 is: 39,317.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,154.02 : 70,590.21 = 28,491.78 : x
  2. Step 2: Convert to fraction form
    51,154.02/70,590.21 = 28,491.78/x
  3. Step 3: Cross multiply
    51,154.02x = 70,590.21 × 28,491.78
  4. Step 4: Simplify right side
    51,154.02x = 2,011,240,733.47
  5. Step 5: Solve for x
    x = 2,011,240,733.47/51,154.02
  6. Step 6: Final answer
    x = 39,317.35

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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.