Home / 61,419.28-84,804.81-60,438.40

Finding the Fourth Proportional to 61,419.28, 84,804.81 and 60,438.40

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Solution

The fourth proportional to 61,419.28, 84,804.81 and 60,438.40 is: 83,450.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,419.28 : 84,804.81 = 60,438.40 : x
  2. Step 2: Convert to fraction form
    61,419.28/84,804.81 = 60,438.40/x
  3. Step 3: Cross multiply
    61,419.28x = 84,804.81 × 60,438.40
  4. Step 4: Simplify right side
    61,419.28x = 5,125,466,302.49
  5. Step 5: Solve for x
    x = 5,125,466,302.49/61,419.28
  6. Step 6: Final answer
    x = 83,450.45

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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.