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Finding the Fourth Proportional to 56,875.68, 85,313.16 and 19,417.68

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Solution

The fourth proportional to 56,875.68, 85,313.16 and 19,417.68 is: 29,126.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,875.68 : 85,313.16 = 19,417.68 : x
  2. Step 2: Convert to fraction form
    56,875.68/85,313.16 = 19,417.68/x
  3. Step 3: Cross multiply
    56,875.68x = 85,313.16 × 19,417.68
  4. Step 4: Simplify right side
    56,875.68x = 1,656,583,640.67
  5. Step 5: Solve for x
    x = 1,656,583,640.67/56,875.68
  6. Step 6: Final answer
    x = 29,126.40

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1.5x scale

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.