Home / 56,567.89-78,011.53-38,445.76

Finding the Fourth Proportional to 56,567.89, 78,011.53 and 38,445.76

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Solution

The fourth proportional to 56,567.89, 78,011.53 and 38,445.76 is: 53,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,567.89 : 78,011.53 = 38,445.76 : x
  2. Step 2: Convert to fraction form
    56,567.89/78,011.53 = 38,445.76/x
  3. Step 3: Cross multiply
    56,567.89x = 78,011.53 × 38,445.76
  4. Step 4: Simplify right side
    56,567.89x = 2,999,212,559.61
  5. Step 5: Solve for x
    x = 2,999,212,559.61/56,567.89
  6. Step 6: Final answer
    x = 53,019.70

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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.