Home / 58,111.20-87,166.80-38,428.20

Finding the Fourth Proportional to 58,111.20, 87,166.80 and 38,428.20

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Solution

The fourth proportional to 58,111.20, 87,166.80 and 38,428.20 is: 57,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,111.20 : 87,166.80 = 38,428.20 : x
  2. Step 2: Convert to fraction form
    58,111.20/87,166.80 = 38,428.20/x
  3. Step 3: Cross multiply
    58,111.20x = 87,166.80 × 38,428.20
  4. Step 4: Simplify right side
    58,111.20x = 3,349,663,223.76
  5. Step 5: Solve for x
    x = 3,349,663,223.76/58,111.20
  6. Step 6: Final answer
    x = 57,642.30

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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.