Home / 64,780.98-89,399.36-35,710.32

Finding the Fourth Proportional to 64,780.98, 89,399.36 and 35,710.32

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Solution

The fourth proportional to 64,780.98, 89,399.36 and 35,710.32 is: 49,281.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,780.98 : 89,399.36 = 35,710.32 : x
  2. Step 2: Convert to fraction form
    64,780.98/89,399.36 = 35,710.32/x
  3. Step 3: Cross multiply
    64,780.98x = 89,399.36 × 35,710.32
  4. Step 4: Simplify right side
    64,780.98x = 3,192,479,753.40
  5. Step 5: Solve for x
    x = 3,192,479,753.40/64,780.98
  6. Step 6: Final answer
    x = 49,281.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.