Home / 71,587.79-98,792.34-39,325.39

Finding the Fourth Proportional to 71,587.79, 98,792.34 and 39,325.39

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Solution

The fourth proportional to 71,587.79, 98,792.34 and 39,325.39 is: 54,269.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,587.79 : 98,792.34 = 39,325.39 : x
  2. Step 2: Convert to fraction form
    71,587.79/98,792.34 = 39,325.39/x
  3. Step 3: Cross multiply
    71,587.79x = 98,792.34 × 39,325.39
  4. Step 4: Simplify right side
    71,587.79x = 3,885,047,299.51
  5. Step 5: Solve for x
    x = 3,885,047,299.51/71,587.79
  6. Step 6: Final answer
    x = 54,269.69

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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.