Home / 56,574.89-78,009.35-36,130.08

Finding the Fourth Proportional to 56,574.89, 78,009.35 and 36,130.08

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Solution

The fourth proportional to 56,574.89, 78,009.35 and 36,130.08 is: 49,818.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,574.89 : 78,009.35 = 36,130.08 : x
  2. Step 2: Convert to fraction form
    56,574.89/78,009.35 = 36,130.08/x
  3. Step 3: Cross multiply
    56,574.89x = 78,009.35 × 36,130.08
  4. Step 4: Simplify right side
    56,574.89x = 2,818,483,875.60
  5. Step 5: Solve for x
    x = 2,818,483,875.60/56,574.89
  6. Step 6: Final answer
    x = 49,818.64

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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.