Home / 85,088.29-127,569.79-28,913.26

Finding the Fourth Proportional to 85,088.29, 127,569.79 and 28,913.26

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Solution

The fourth proportional to 85,088.29, 127,569.79 and 28,913.26 is: 43,348.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,088.29 : 127,569.79 = 28,913.26 : x
  2. Step 2: Convert to fraction form
    85,088.29/127,569.79 = 28,913.26/x
  3. Step 3: Cross multiply
    85,088.29x = 127,569.79 × 28,913.26
  4. Step 4: Simplify right side
    85,088.29x = 3,688,458,506.42
  5. Step 5: Solve for x
    x = 3,688,458,506.42/85,088.29
  6. Step 6: Final answer
    x = 43,348.60

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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.