Home / 102,877.79-141,965.60-57,547.01

Finding the Fourth Proportional to 102,877.79, 141,965.60 and 57,547.01

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Solution

The fourth proportional to 102,877.79, 141,965.60 and 57,547.01 is: 79,411.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,877.79 : 141,965.60 = 57,547.01 : x
  2. Step 2: Convert to fraction form
    102,877.79/141,965.60 = 57,547.01/x
  3. Step 3: Cross multiply
    102,877.79x = 141,965.60 × 57,547.01
  4. Step 4: Simplify right side
    102,877.79x = 8,169,695,870.03
  5. Step 5: Solve for x
    x = 8,169,695,870.03/102,877.79
  6. Step 6: Final answer
    x = 79,411.66

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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.