Home / 74,877.51-103,330.31-40,885.84

Finding the Fourth Proportional to 74,877.51, 103,330.31 and 40,885.84

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Solution

The fourth proportional to 74,877.51, 103,330.31 and 40,885.84 is: 56,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,877.51 : 103,330.31 = 40,885.84 : x
  2. Step 2: Convert to fraction form
    74,877.51/103,330.31 = 40,885.84/x
  3. Step 3: Cross multiply
    74,877.51x = 103,330.31 × 40,885.84
  4. Step 4: Simplify right side
    74,877.51x = 4,224,746,521.81
  5. Step 5: Solve for x
    x = 4,224,746,521.81/74,877.51
  6. Step 6: Final answer
    x = 56,422.10

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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.