Home / 61,389.74-84,729.47-38,430.23

Finding the Fourth Proportional to 61,389.74, 84,729.47 and 38,430.23

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Solution

The fourth proportional to 61,389.74, 84,729.47 and 38,430.23 is: 53,040.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,389.74 : 84,729.47 = 38,430.23 : x
  2. Step 2: Convert to fraction form
    61,389.74/84,729.47 = 38,430.23/x
  3. Step 3: Cross multiply
    61,389.74x = 84,729.47 × 38,430.23
  4. Step 4: Simplify right side
    61,389.74x = 3,256,172,404.08
  5. Step 5: Solve for x
    x = 3,256,172,404.08/61,389.74
  6. Step 6: Final answer
    x = 53,040.99

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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.