Home / 85,598.30-128,403.63-26,426.32

Finding the Fourth Proportional to 85,598.30, 128,403.63 and 26,426.32

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Solution

The fourth proportional to 85,598.30, 128,403.63 and 26,426.32 is: 39,641.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,598.30 : 128,403.63 = 26,426.32 : x
  2. Step 2: Convert to fraction form
    85,598.30/128,403.63 = 26,426.32/x
  3. Step 3: Cross multiply
    85,598.30x = 128,403.63 × 26,426.32
  4. Step 4: Simplify right side
    85,598.30x = 3,393,235,094.53
  5. Step 5: Solve for x
    x = 3,393,235,094.53/85,598.30
  6. Step 6: Final answer
    x = 39,641.38

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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.