Home / 64,897.20-97,345.80-39,965.40

Finding the Fourth Proportional to 64,897.20, 97,345.80 and 39,965.40

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Solution

The fourth proportional to 64,897.20, 97,345.80 and 39,965.40 is: 59,948.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,897.20 : 97,345.80 = 39,965.40 : x
  2. Step 2: Convert to fraction form
    64,897.20/97,345.80 = 39,965.40/x
  3. Step 3: Cross multiply
    64,897.20x = 97,345.80 × 39,965.40
  4. Step 4: Simplify right side
    64,897.20x = 3,890,463,835.32
  5. Step 5: Solve for x
    x = 3,890,463,835.32/64,897.20
  6. Step 6: Final answer
    x = 59,948.10

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Similar ratio
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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.