Home / 85,410.02-128,062.46-58,788.32

Finding the Fourth Proportional to 85,410.02, 128,062.46 and 58,788.32

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Solution

The fourth proportional to 85,410.02, 128,062.46 and 58,788.32 is: 88,146.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,410.02 : 128,062.46 = 58,788.32 : x
  2. Step 2: Convert to fraction form
    85,410.02/128,062.46 = 58,788.32/x
  3. Step 3: Cross multiply
    85,410.02x = 128,062.46 × 58,788.32
  4. Step 4: Simplify right side
    85,410.02x = 7,528,576,878.47
  5. Step 5: Solve for x
    x = 7,528,576,878.47/85,410.02
  6. Step 6: Final answer
    x = 88,146.30

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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.