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Finding the Fourth Proportional to 64,802.40, 97,009.20 and 38,493.60

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Solution

The fourth proportional to 64,802.40, 97,009.20 and 38,493.60 is: 57,624.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,802.40 : 97,009.20 = 38,493.60 : x
  2. Step 2: Convert to fraction form
    64,802.40/97,009.20 = 38,493.60/x
  3. Step 3: Cross multiply
    64,802.40x = 97,009.20 × 38,493.60
  4. Step 4: Simplify right side
    64,802.40x = 3,734,233,341.12
  5. Step 5: Solve for x
    x = 3,734,233,341.12/64,802.40
  6. Step 6: Final answer
    x = 57,624.92

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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.