Home / 65,354.09-90,174.84-42,726.20

Finding the Fourth Proportional to 65,354.09, 90,174.84 and 42,726.20

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Solution

The fourth proportional to 65,354.09, 90,174.84 and 42,726.20 is: 58,953.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,354.09 : 90,174.84 = 42,726.20 : x
  2. Step 2: Convert to fraction form
    65,354.09/90,174.84 = 42,726.20/x
  3. Step 3: Cross multiply
    65,354.09x = 90,174.84 × 42,726.20
  4. Step 4: Simplify right side
    65,354.09x = 3,852,828,248.81
  5. Step 5: Solve for x
    x = 3,852,828,248.81/65,354.09
  6. Step 6: Final answer
    x = 58,953.13

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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.