Home / 105,424.36-145,484.34-57,677.08

Finding the Fourth Proportional to 105,424.36, 145,484.34 and 57,677.08

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Solution

The fourth proportional to 105,424.36, 145,484.34 and 57,677.08 is: 79,593.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,424.36 : 145,484.34 = 57,677.08 : x
  2. Step 2: Convert to fraction form
    105,424.36/145,484.34 = 57,677.08/x
  3. Step 3: Cross multiply
    105,424.36x = 145,484.34 × 57,677.08
  4. Step 4: Simplify right side
    105,424.36x = 8,391,111,916.93
  5. Step 5: Solve for x
    x = 8,391,111,916.93/105,424.36
  6. Step 6: Final answer
    x = 79,593.67

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1.5x scale

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.