Home / 85,941.84-128,918.98-35,971.68

Finding the Fourth Proportional to 85,941.84, 128,918.98 and 35,971.68

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Solution

The fourth proportional to 85,941.84, 128,918.98 and 35,971.68 is: 53,960.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,941.84 : 128,918.98 = 35,971.68 : x
  2. Step 2: Convert to fraction form
    85,941.84/128,918.98 = 35,971.68/x
  3. Step 3: Cross multiply
    85,941.84x = 128,918.98 × 35,971.68
  4. Step 4: Simplify right side
    85,941.84x = 4,637,432,294.49
  5. Step 5: Solve for x
    x = 4,637,432,294.49/85,941.84
  6. Step 6: Final answer
    x = 53,960.12

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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.