Home / 58,720.68-88,088.40-19,281.78

Finding the Fourth Proportional to 58,720.68, 88,088.40 and 19,281.78

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Solution

The fourth proportional to 58,720.68, 88,088.40 and 19,281.78 is: 28,925.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,720.68 : 88,088.40 = 19,281.78 : x
  2. Step 2: Convert to fraction form
    58,720.68/88,088.40 = 19,281.78/x
  3. Step 3: Cross multiply
    58,720.68x = 88,088.40 × 19,281.78
  4. Step 4: Simplify right side
    58,720.68x = 1,698,501,149.35
  5. Step 5: Solve for x
    x = 1,698,501,149.35/58,720.68
  6. Step 6: Final answer
    x = 28,925.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.