Home / 78,430.64-108,216.80-44,436.16

Finding the Fourth Proportional to 78,430.64, 108,216.80 and 44,436.16

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Solution

The fourth proportional to 78,430.64, 108,216.80 and 44,436.16 is: 61,312.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,430.64 : 108,216.80 = 44,436.16 : x
  2. Step 2: Convert to fraction form
    78,430.64/108,216.80 = 44,436.16/x
  3. Step 3: Cross multiply
    78,430.64x = 108,216.80 × 44,436.16
  4. Step 4: Simplify right side
    78,430.64x = 4,808,739,039.49
  5. Step 5: Solve for x
    x = 4,808,739,039.49/78,430.64
  6. Step 6: Final answer
    x = 61,312.00

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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.