Home / 64,897.65-97,356.60-20,520.18

Finding the Fourth Proportional to 64,897.65, 97,356.60 and 20,520.18

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Solution

The fourth proportional to 64,897.65, 97,356.60 and 20,520.18 is: 30,783.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,897.65 : 97,356.60 = 20,520.18 : x
  2. Step 2: Convert to fraction form
    64,897.65/97,356.60 = 20,520.18/x
  3. Step 3: Cross multiply
    64,897.65x = 97,356.60 × 20,520.18
  4. Step 4: Simplify right side
    64,897.65x = 1,997,774,956.19
  5. Step 5: Solve for x
    x = 1,997,774,956.19/64,897.65
  6. Step 6: Final answer
    x = 30,783.47

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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.