Home / 351,931.33-527,886.75-85,688

Finding the Fourth Proportional to 351,931.33, 527,886.75 and 85,688

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Solution

The fourth proportional to 351,931.33, 527,886.75 and 85,688 is: 128,529.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,931.33 : 527,886.75 = 85,688 : x
  2. Step 2: Convert to fraction form
    351,931.33/527,886.75 = 85,688/x
  3. Step 3: Cross multiply
    351,931.33x = 527,886.75 × 85,688
  4. Step 4: Simplify right side
    351,931.33x = 45,233,559,834
  5. Step 5: Solve for x
    x = 45,233,559,834/351,931.33
  6. Step 6: Final answer
    x = 128,529.51

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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.