Home / 90,123.36-124,328.83-58,302.51

Finding the Fourth Proportional to 90,123.36, 124,328.83 and 58,302.51

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Solution

The fourth proportional to 90,123.36, 124,328.83 and 58,302.51 is: 80,430.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,123.36 : 124,328.83 = 58,302.51 : x
  2. Step 2: Convert to fraction form
    90,123.36/124,328.83 = 58,302.51/x
  3. Step 3: Cross multiply
    90,123.36x = 124,328.83 × 58,302.51
  4. Step 4: Simplify right side
    90,123.36x = 7,248,682,854.36
  5. Step 5: Solve for x
    x = 7,248,682,854.36/90,123.36
  6. Step 6: Final answer
    x = 80,430.68

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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.