Home / 85,807.02-128,708.67-23,477.52

Finding the Fourth Proportional to 85,807.02, 128,708.67 and 23,477.52

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Solution

The fourth proportional to 85,807.02, 128,708.67 and 23,477.52 is: 35,215.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,807.02 : 128,708.67 = 23,477.52 : x
  2. Step 2: Convert to fraction form
    85,807.02/128,708.67 = 23,477.52/x
  3. Step 3: Cross multiply
    85,807.02x = 128,708.67 × 23,477.52
  4. Step 4: Simplify right side
    85,807.02x = 3,021,760,374.10
  5. Step 5: Solve for x
    x = 3,021,760,374.10/85,807.02
  6. Step 6: Final answer
    x = 35,215.77

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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.