Home / 45,852.48-68,778.95-20,875.05

Finding the Fourth Proportional to 45,852.48, 68,778.95 and 20,875.05

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Solution

The fourth proportional to 45,852.48, 68,778.95 and 20,875.05 is: 31,312.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,852.48 : 68,778.95 = 20,875.05 : x
  2. Step 2: Convert to fraction form
    45,852.48/68,778.95 = 20,875.05/x
  3. Step 3: Cross multiply
    45,852.48x = 68,778.95 × 20,875.05
  4. Step 4: Simplify right side
    45,852.48x = 1,435,763,915.82
  5. Step 5: Solve for x
    x = 1,435,763,915.82/45,852.48
  6. Step 6: Final answer
    x = 31,312.68

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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.