Home / 79,688.48-109,970.40-43,877.60

Finding the Fourth Proportional to 79,688.48, 109,970.40 and 43,877.60

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Solution

The fourth proportional to 79,688.48, 109,970.40 and 43,877.60 is: 60,551.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,688.48 : 109,970.40 = 43,877.60 : x
  2. Step 2: Convert to fraction form
    79,688.48/109,970.40 = 43,877.60/x
  3. Step 3: Cross multiply
    79,688.48x = 109,970.40 × 43,877.60
  4. Step 4: Simplify right side
    79,688.48x = 4,825,237,223.04
  5. Step 5: Solve for x
    x = 4,825,237,223.04/79,688.48
  6. Step 6: Final answer
    x = 60,551.25

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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.