Home / 74,315.12-102,555.06-42,484.88

Finding the Fourth Proportional to 74,315.12, 102,555.06 and 42,484.88

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Solution

The fourth proportional to 74,315.12, 102,555.06 and 42,484.88 is: 58,629.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,315.12 : 102,555.06 = 42,484.88 : x
  2. Step 2: Convert to fraction form
    74,315.12/102,555.06 = 42,484.88/x
  3. Step 3: Cross multiply
    74,315.12x = 102,555.06 × 42,484.88
  4. Step 4: Simplify right side
    74,315.12x = 4,357,039,417.49
  5. Step 5: Solve for x
    x = 4,357,039,417.49/74,315.12
  6. Step 6: Final answer
    x = 58,629.25

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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.