Home / 56,803.02-78,326.64-38,665.50

Finding the Fourth Proportional to 56,803.02, 78,326.64 and 38,665.50

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Solution

The fourth proportional to 56,803.02, 78,326.64 and 38,665.50 is: 53,316.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,803.02 : 78,326.64 = 38,665.50 : x
  2. Step 2: Convert to fraction form
    56,803.02/78,326.64 = 38,665.50/x
  3. Step 3: Cross multiply
    56,803.02x = 78,326.64 × 38,665.50
  4. Step 4: Simplify right side
    56,803.02x = 3,028,538,698.92
  5. Step 5: Solve for x
    x = 3,028,538,698.92/56,803.02
  6. Step 6: Final answer
    x = 53,316.51

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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.