Home / 64,243.20-96,364.80-57,698.40

Finding the Fourth Proportional to 64,243.20, 96,364.80 and 57,698.40

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Solution

The fourth proportional to 64,243.20, 96,364.80 and 57,698.40 is: 86,547.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,243.20 : 96,364.80 = 57,698.40 : x
  2. Step 2: Convert to fraction form
    64,243.20/96,364.80 = 57,698.40/x
  3. Step 3: Cross multiply
    64,243.20x = 96,364.80 × 57,698.40
  4. Step 4: Simplify right side
    64,243.20x = 5,560,094,776.32
  5. Step 5: Solve for x
    x = 5,560,094,776.32/64,243.20
  6. Step 6: Final answer
    x = 86,547.60

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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.