Home / 89,390.60-134,115.03-42,637.40

Finding the Fourth Proportional to 89,390.60, 134,115.03 and 42,637.40

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Solution

The fourth proportional to 89,390.60, 134,115.03 and 42,637.40 is: 63,969.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,390.60 : 134,115.03 = 42,637.40 : x
  2. Step 2: Convert to fraction form
    89,390.60/134,115.03 = 42,637.40/x
  3. Step 3: Cross multiply
    89,390.60x = 134,115.03 × 42,637.40
  4. Step 4: Simplify right side
    89,390.60x = 5,718,316,180.12
  5. Step 5: Solve for x
    x = 5,718,316,180.12/89,390.60
  6. Step 6: Final answer
    x = 63,969.99

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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.