Home / 64,904.80-97,357.20-42,743.20

Finding the Fourth Proportional to 64,904.80, 97,357.20 and 42,743.20

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Solution

The fourth proportional to 64,904.80, 97,357.20 and 42,743.20 is: 64,114.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,904.80 : 97,357.20 = 42,743.20 : x
  2. Step 2: Convert to fraction form
    64,904.80/97,357.20 = 42,743.20/x
  3. Step 3: Cross multiply
    64,904.80x = 97,357.20 × 42,743.20
  4. Step 4: Simplify right side
    64,904.80x = 4,161,358,271.04
  5. Step 5: Solve for x
    x = 4,161,358,271.04/64,904.80
  6. Step 6: Final answer
    x = 64,114.80

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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.