Home / 89,021.40-133,532.10-42,365.40

Finding the Fourth Proportional to 89,021.40, 133,532.10 and 42,365.40

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Solution

The fourth proportional to 89,021.40, 133,532.10 and 42,365.40 is: 63,548.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,021.40 : 133,532.10 = 42,365.40 : x
  2. Step 2: Convert to fraction form
    89,021.40/133,532.10 = 42,365.40/x
  3. Step 3: Cross multiply
    89,021.40x = 133,532.10 × 42,365.40
  4. Step 4: Simplify right side
    89,021.40x = 5,657,140,829.34
  5. Step 5: Solve for x
    x = 5,657,140,829.34/89,021.40
  6. Step 6: Final answer
    x = 63,548.10

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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.