Home / 64,870.08-97,315.20-31,569.60

Finding the Fourth Proportional to 64,870.08, 97,315.20 and 31,569.60

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Solution

The fourth proportional to 64,870.08, 97,315.20 and 31,569.60 is: 47,359.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,870.08 : 97,315.20 = 31,569.60 : x
  2. Step 2: Convert to fraction form
    64,870.08/97,315.20 = 31,569.60/x
  3. Step 3: Cross multiply
    64,870.08x = 97,315.20 × 31,569.60
  4. Step 4: Simplify right side
    64,870.08x = 3,072,201,937.92
  5. Step 5: Solve for x
    x = 3,072,201,937.92/64,870.08
  6. Step 6: Final answer
    x = 47,359.31

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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.