Home / 64,845.04-89,497.56-61,890.16

Finding the Fourth Proportional to 64,845.04, 89,497.56 and 61,890.16

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Solution

The fourth proportional to 64,845.04, 89,497.56 and 61,890.16 is: 85,419.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,845.04 : 89,497.56 = 61,890.16 : x
  2. Step 2: Convert to fraction form
    64,845.04/89,497.56 = 61,890.16/x
  3. Step 3: Cross multiply
    64,845.04x = 89,497.56 × 61,890.16
  4. Step 4: Simplify right side
    64,845.04x = 5,539,018,308.01
  5. Step 5: Solve for x
    x = 5,539,018,308.01/64,845.04
  6. Step 6: Final answer
    x = 85,419.31

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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.