Home / 89,931.40-134,792.04-67,673.20

Finding the Fourth Proportional to 89,931.40, 134,792.04 and 67,673.20

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Solution

The fourth proportional to 89,931.40, 134,792.04 and 67,673.20 is: 101,430.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,931.40 : 134,792.04 = 67,673.20 : x
  2. Step 2: Convert to fraction form
    89,931.40/134,792.04 = 67,673.20/x
  3. Step 3: Cross multiply
    89,931.40x = 134,792.04 × 67,673.20
  4. Step 4: Simplify right side
    89,931.40x = 9,121,808,681.33
  5. Step 5: Solve for x
    x = 9,121,808,681.33/89,931.40
  6. Step 6: Final answer
    x = 101,430.74

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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.